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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 5 |
| 5 | 5 |
| 6 | 13 |
| 7 | 15 |
| 8 | 41 |
| 9 | 52 |
| 10 | 143 |
| 11 | 202 |
| 12 | 564 |
| 13 | 855 |
| 14 | 2433 |
| 15 | 3845 |
| 16 | 11101 |
| 17 | 18002 |
| 18 | 52662 |
| 19 | 86472 |
| 20 | 255128 |
| 21 | 422005 |
| 22 | 1252898 |
| 23 | 2079475 |
| 24 | 6197590 |
| 25 | 10306752 |
| 26 | 30796243 |
| 27 | 51263942 |
| 28 | 153411664 |
| 29 | 255514355 |
| 30 | 765393943 |
| 31 | 1275163905 |
| 32 | 3822001141 |
| 33 | 6368612302 |
| 34 | 19095317552 |
| 35 | 31821472612 |
[1,1,2,2,5,5,13,15,41,52,143,202,564,855,2433, 3845,11101,18002,52662,86472,255128,422005, 1252898,2079475,6197590,10306752,30796243, 51263942,153411664,255514355,765393943,1275163905, 3822001141,6368612302,19095317552,31821472612] |