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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 6 |
| 6 | 7 |
| 7 | 14 |
| 8 | 11 |
| 9 | 42 |
| 10 | 39 |
| 11 | 70 |
| 12 | 95 |
| 13 | 142 |
| 14 | 239 |
| 15 | 378 |
| 16 | 418 |
| 17 | 624 |
| 18 | 1106 |
| 19 | 1200 |
| 20 | 2250 |
| 21 | 2836 |
| 22 | 4166 |
| 23 | 4902 |
| 24 | 8021 |
| 25 | 10410 |
| 26 | 14961 |
| 27 | 21268 |
| 28 | 29477 |
| 29 | 36714 |
| 30 | 54172 |
| 31 | 68358 |
| 32 | 95071 |
| 33 | 134946 |
| 34 | 168035 |
| 35 | 254190 |
| 36 | 322335 |
| 37 | 427338 |
| 38 | 541054 |
| 39 | 787264 |
| 40 | 964969 |
| 41 | 1340730 |
| 42 | 1748094 |
| 43 | 2311386 |
[1,0,1,2,2,6,7,14,11,42,39,70,95,142,239,378,418, 624,1106,1200,2250,2836,4166,4902,8021,10410, 14961,21268,29477,36714,54172,68358,95071,134946, 168035,254190,322335,427338,541054,787264,964969, 1340730,1748094,2311386] |