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| n | a(n) |
|---|---|
| 11 | 1 |
| 12 | 5 |
| 13 | 25 |
| 14 | 116 |
| 15 | 482 |
| 16 | 1834 |
| 17 | 6399 |
| 18 | 20688 |
| 19 | 62355 |
| 20 | 176542 |
| 21 | 472051 |
| 22 | 1198756 |
| 23 | 2904166 |
| 24 | 6740600 |
| 25 | 15042512 |
| 26 | 32382969 |
| 27 | 67441667 |
| 28 | 136233495 |
| 29 | 267534126 |
| 30 | 511819591 |
| 31 | 955658500 |
| 32 | 1744487967 |
| 33 | 3117961283 |
| 34 | 5463991463 |
| 35 | 9400016470 |
| 36 | 15893600813 |
[1,5,25,116,482,1834,6399,20688,62355,176542, 472051,1198756,2904166,6740600,15042512,32382969, 67441667,136233495,267534126,511819591,955658500, 1744487967,3117961283,5463991463,9400016470, 15893600813] |