Marios Mamzeris shows us that you can transform a odd square with sequencial numbers into a symmetric magic square in two steps (https://www.oddmagicsquares.com/):
Step 1, horizontal swap
< | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | |
< | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | |
< | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | |
< | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | |
< | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | |
< | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | |
79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | ||
92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | > | |
105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | > | |
118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | > | |
131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | > | |
144 | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | 156 | > | |
157 | 158 | 159 | 160 | 161 | 162 | 163 | 164 | 165 | 166 | 167 | 168 | 169 | > |
2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 1 | |
16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 14 | 15 | |
30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 27 | 28 | 29 | |
44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 40 | 41 | 42 | 43 | |
58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 53 | 54 | 55 | 56 | 57 | |
72 | 73 | 74 | 75 | 76 | 77 | 78 | 66 | 67 | 68 | 69 | 70 | 71 | |
79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | |
99 | 100 | 101 | 102 | 103 | 104 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | |
113 | 114 | 115 | 116 | 117 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | |
127 | 128 | 129 | 130 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | |
141 | 142 | 143 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | |
155 | 156 | 144 | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | |
169 | 157 | 158 | 159 | 160 | 161 | 162 | 163 | 164 | 165 | 166 | 167 | 168 |
Step 2, vertical swap
^ | ^ | ^ | ^ | ^ | ^ | |||||||
2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 1 |
16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 14 | 15 |
30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 27 | 28 | 29 |
44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 40 | 41 | 42 | 43 |
58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 53 | 54 | 55 | 56 | 57 |
72 | 73 | 74 | 75 | 76 | 77 | 78 | 66 | 67 | 68 | 69 | 70 | 71 |
79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 |
99 | 100 | 101 | 102 | 103 | 104 | 92 | 93 | 94 | 95 | 96 | 97 | 98 |
113 | 114 | 115 | 116 | 117 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 |
127 | 128 | 129 | 130 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 |
141 | 142 | 143 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 |
155 | 156 | 144 | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 |
169 | 157 | 158 | 159 | 160 | 161 | 162 | 163 | 164 | 165 | 166 | 167 | 168 |
v | v | v | v | v | v |
16 | 31 | 46 | 61 | 76 | 84 | 8 | 93 | 108 | 123 | 138 | 153 | 168 |
30 | 45 | 60 | 75 | 83 | 104 | 22 | 107 | 122 | 137 | 152 | 167 | 1 |
44 | 59 | 74 | 82 | 103 | 105 | 36 | 121 | 136 | 151 | 166 | 13 | 15 |
58 | 73 | 81 | 102 | 117 | 119 | 50 | 135 | 150 | 165 | 12 | 14 | 29 |
72 | 80 | 101 | 116 | 118 | 133 | 64 | 149 | 164 | 11 | 26 | 28 | 43 |
79 | 100 | 115 | 130 | 132 | 147 | 78 | 163 | 10 | 25 | 27 | 42 | 57 |
99 | 114 | 129 | 131 | 146 | 161 | 85 | 9 | 24 | 39 | 41 | 56 | 71 |
113 | 128 | 143 | 145 | 160 | 7 | 92 | 23 | 38 | 40 | 55 | 70 | 91 |
127 | 142 | 144 | 159 | 6 | 21 | 106 | 37 | 52 | 54 | 69 | 90 | 98 |
141 | 156 | 158 | 5 | 20 | 35 | 120 | 51 | 53 | 68 | 89 | 97 | 112 |
155 | 157 | 4 | 19 | 34 | 49 | 134 | 65 | 67 | 88 | 96 | 111 | 126 |
169 | 3 | 18 | 33 | 48 | 63 | 148 | 66 | 87 | 95 | 110 | 125 | 140 |
2 | 17 | 32 | 47 | 62 | 77 | 162 | 86 | 94 | 109 | 124 | 139 | 154 |
See 3x3, 5x5, 7x7, 9x9, 11x11, 13x13, 15x15, 17x17, 19x19, 21x21, 23x23, 25x25, 27x27, 29x29 and 31x31