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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 10 |
| 5 | 20 |
| 6 | 36 |
| 7 | 63 |
| 8 | 104 |
| 9 | 169 |
| 10 | 264 |
| 11 | 405 |
| 12 | 604 |
| 13 | 888 |
| 14 | 1278 |
| 15 | 1815 |
| 16 | 2536 |
| 17 | 3502 |
| 18 | 4772 |
| 19 | 6437 |
| 20 | 8586 |
| 21 | 11352 |
| 22 | 14866 |
| 23 | 19315 |
| 24 | 24890 |
| 25 | 31851 |
| 26 | 40466 |
| 27 | 51089 |
| 28 | 64092 |
| 29 | 79952 |
| 30 | 99172 |
| 31 | 122386 |
| 32 | 150264 |
| 33 | 183639 |
| 34 | 223394 |
| 35 | 270605 |
| 36 | 326422 |
| 37 | 392225 |
| 38 | 469490 |
| 39 | 559970 |
| 40 | 665542 |
| 41 | 788412 |
[1,2,5,10,20,36,63,104,169,264,405,604,888,1278, 1815,2536,3502,4772,6437,8586,11352,14866,19315, 24890,31851,40466,51089,64092,79952,99172,122386, 150264,183639,223394,270605,326422,392225,469490, 559970,665542,788412] |