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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 5 |
| 5 | 7 |
| 6 | 9 |
| 7 | 25 |
| 8 | 34 |
| 9 | 43 |
| 10 | 120 |
| 11 | 163 |
| 12 | 206 |
| 13 | 575 |
| 14 | 781 |
| 15 | 987 |
| 16 | 2755 |
| 17 | 3742 |
| 18 | 4729 |
| 19 | 13200 |
| 20 | 17929 |
| 21 | 22658 |
| 22 | 63245 |
| 23 | 85903 |
| 24 | 108561 |
| 25 | 303025 |
| 26 | 411586 |
| 27 | 520147 |
| 28 | 1451880 |
| 29 | 1972027 |
| 30 | 2492174 |
| 31 | 6956375 |
| 32 | 9448549 |
| 33 | 11940723 |
| 34 | 33329995 |
| 35 | 45270718 |
| 36 | 57211441 |
| 37 | 159693600 |
[0,1,2,5,7,9,25,34,43,120,163,206,575,781,987, 2755,3742,4729,13200,17929,22658,63245,85903, 108561,303025,411586,520147,1451880,1972027, 2492174,6956375,9448549,11940723,33329995, 45270718,57211441,159693600] |