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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 10 |
| 3 | 22 |
| 4 | 57 |
| 5 | 115 |
| 6 | 248 |
| 7 | 456 |
| 8 | 906 |
| 9 | 1598 |
| 10 | 2956 |
| 11 | 4980 |
| 12 | 8802 |
| 13 | 14422 |
| 14 | 24440 |
| 15 | 38856 |
| 16 | 63881 |
| 17 | 99515 |
| 18 | 159106 |
| 19 | 242654 |
| 20 | 379609 |
| 21 | 569971 |
| 22 | 873696 |
| 23 | 1290784 |
| 24 | 1945912 |
| 25 | 2839080 |
| 26 | 4213712 |
| 27 | 6069808 |
| 28 | 8890264 |
| 29 | 12675080 |
| 30 | 18334048 |
| 31 | 25867168 |
| 32 | 37011210 |
| 33 | 51766174 |
| 34 | 73308548 |
| 35 | 101638332 |
| 36 | 142626458 |
[1,3,10,22,57,115,248,456,906,1598,2956,4980,8802, 14422,24440,38856,63881,99515,159106,242654, 379609,569971,873696,1290784,1945912,2839080, 4213712,6069808,8890264,12675080,18334048, 25867168,37011210,51766174,73308548,101638332, 142626458] |