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| n | a(n) |
|---|---|
| 5 | 0 |
| 6 | 1 |
| 7 | 1 |
| 8 | 3 |
| 9 | 8 |
| 10 | 22 |
| 11 | 61 |
| 12 | 168 |
| 13 | 465 |
| 14 | 1302 |
| 15 | 3659 |
| 16 | 10329 |
| 17 | 29247 |
| 18 | 83076 |
| 19 | 236567 |
| 20 | 675191 |
| 21 | 1930857 |
| 22 | 5531409 |
| 23 | 15870783 |
| 24 | 45600643 |
| 25 | 131187583 |
| 26 | 377844713 |
| 27 | 1089401822 |
| 28 | 3143970659 |
| 29 | 9081351051 |
| 30 | 26252708661 |
| 31 | 75949137535 |
| 32 | 219873546468 |
| 33 | 636947053248 |
| 34 | 1846268556446 |
| 35 | 5354642063044 |
[0,1,1,3,8,22,61,168,465,1302,3659,10329,29247, 83076,236567,675191,1930857,5531409,15870783, 45600643,131187583,377844713,1089401822, 3143970659,9081351051,26252708661,75949137535, 219873546468,636947053248,1846268556446, 5354642063044] |