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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 12 |
| 3 | 12 |
| 4 | 40 |
| 5 | 120 |
| 6 | 40 |
| 7 | 128 |
| 8 | 1276 |
| 9 | 1276 |
| 10 | 128 |
| 11 | 416 |
| 12 | 13128 |
| 13 | 43648 |
| 14 | 13128 |
| 15 | 416 |
| 16 | 1344 |
| 17 | 136684 |
| 18 | 1436268 |
| 19 | 1436268 |
| 20 | 136684 |
| 21 | 1344 |
| 22 | 4352 |
| 23 | 1416192 |
| 24 | 47885992 |
| 25 | 151351888 |
| 26 | 47885992 |
| 27 | 1416192 |
| 28 | 4352 |
| 29 | 14080 |
| 30 | 14700364 |
| 31 | 1588084496 |
| 32 | 16147220164 |
| 33 | 16147220164 |
[4,12,12,40,120,40,128,1276,1276,128,416,13128, 43648,13128,416,1344,136684,1436268,1436268, 136684,1344,4352,1416192,47885992,151351888, 47885992,1416192,4352,14080,14700364,1588084496, 16147220164,16147220164] |