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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 5 |
| 3 | 48 |
| 4 | 180 |
| 5 | 481 |
| 6 | 1034 |
| 7 | 1986 |
| 8 | 3441 |
| 9 | 5602 |
| 10 | 8623 |
| 11 | 12755 |
| 12 | 18126 |
| 13 | 25165 |
| 14 | 33951 |
| 15 | 44936 |
| 16 | 58367 |
| 17 | 74638 |
| 18 | 93934 |
| 19 | 116987 |
| 20 | 143760 |
| 21 | 175126 |
| 22 | 211253 |
| 23 | 252782 |
| 24 | 299884 |
| 25 | 353673 |
| 26 | 414098 |
| 27 | 482057 |
| 28 | 557997 |
| 29 | 642810 |
| 30 | 736317 |
| 31 | 840479 |
| 32 | 954638 |
| 33 | 1080451 |
[0,0,5,48,180,481,1034,1986,3441,5602,8623,12755, 18126,25165,33951,44936,58367,74638,93934,116987, 143760,175126,211253,252782,299884,353673,414098, 482057,557997,642810,736317,840479,954638,1080451] |