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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 14 |
| 4 | 21 |
| 5 | 47 |
| 6 | 158 |
| 7 | 237 |
| 8 | 533 |
| 9 | 1199 |
| 10 | 4046 |
| 11 | 6069 |
| 12 | 13655 |
| 13 | 46085 |
| 14 | 103691 |
| 15 | 1181102 |
| 16 | 1771653 |
| 17 | 3986219 |
| 18 | 102162425 |
| 19 | 229865456 |
| 20 | 344798184 |
| 21 | 517197276 |
| 22 | 775795914 |
| 23 | 1163693871 |
| 24 | 3927466814 |
| 25 | 5891200221 |
| 26 | 13255200497 |
| 27 | 29824201118 |
| 28 | 44736301677 |
| 29 | 100656678773 |
| 30 | 226477527239 |
| 31 | 764361654431 |
| 32 | 2579720583704 |
| 33 | 3869580875556 |
| 34 | 5804371313334 |
| 35 | 8706556970001 |
| 36 | 19589753182502 |
| 37 | 29384629773753 |
| 38 | 66115416990944 |
| 39 | 99173125486416 |
[1,2,3,14,21,47,158,237,533,1199,4046,6069,13655, 46085,103691,1181102,1771653,3986219,102162425, 229865456,344798184,517197276,775795914, 1163693871,3927466814,5891200221,13255200497, 29824201118,44736301677,100656678773,226477527239, 764361654431,2579720583704,3869580875556, 5804371313334,8706556970001,19589753182502, 29384629773753,66115416990944,99173125486416] |