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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 6 |
| 4 | 14 |
| 5 | 32 |
| 6 | 65 |
| 7 | 128 |
| 8 | 243 |
| 9 | 452 |
| 10 | 826 |
| 11 | 1490 |
| 12 | 2659 |
| 13 | 4704 |
| 14 | 8261 |
| 15 | 14418 |
| 16 | 25030 |
| 17 | 43252 |
| 18 | 74437 |
| 19 | 127648 |
| 20 | 218199 |
| 21 | 371920 |
| 22 | 632306 |
| 23 | 1072486 |
| 24 | 1815239 |
| 25 | 3066432 |
| 26 | 5170825 |
| 27 | 8705118 |
| 28 | 14632958 |
| 29 | 24562952 |
| 30 | 41177801 |
| 31 | 68947520 |
| 32 | 115313979 |
| 33 | 192656924 |
| 34 | 321554986 |
| 35 | 536191418 |
[0,0,1,6,14,32,65,128,243,452,826,1490,2659,4704, 8261,14418,25030,43252,74437,127648,218199,371920, 632306,1072486,1815239,3066432,5170825,8705118, 14632958,24562952,41177801,68947520,115313979, 192656924,321554986,536191418] |