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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 49 |
| 3 | 168 |
| 4 | 462 |
| 5 | 1092 |
| 6 | 2310 |
| 7 | 4488 |
| 8 | 8151 |
| 9 | 14014 |
| 10 | 23023 |
| 11 | 36400 |
| 12 | 55692 |
| 13 | 82824 |
| 14 | 120156 |
| 15 | 170544 |
| 16 | 237405 |
| 17 | 324786 |
| 18 | 437437 |
| 19 | 580888 |
| 20 | 761530 |
| 21 | 986700 |
| 22 | 1264770 |
| 23 | 1605240 |
| 24 | 2018835 |
| 25 | 2517606 |
| 26 | 3115035 |
| 27 | 3826144 |
| 28 | 4667608 |
| 29 | 5657872 |
| 30 | 6817272 |
| 31 | 8168160 |
| 32 | 9735033 |
| 33 | 11544666 |
[1,10,49,168,462,1092,2310,4488,8151,14014,23023, 36400,55692,82824,120156,170544,237405,324786, 437437,580888,761530,986700,1264770,1605240, 2018835,2517606,3115035,3826144,4667608,5657872, 6817272,8168160,9735033,11544666] |