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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 7 |
| 2 | 27 |
| 3 | 78 |
| 4 | 188 |
| 5 | 399 |
| 6 | 771 |
| 7 | 1386 |
| 8 | 2352 |
| 9 | 3807 |
| 10 | 5924 |
| 11 | 8916 |
| 12 | 13041 |
| 13 | 18606 |
| 14 | 25971 |
| 15 | 35554 |
| 16 | 47835 |
| 17 | 63361 |
| 18 | 82750 |
| 19 | 106695 |
| 20 | 135968 |
| 21 | 171425 |
| 22 | 214011 |
| 23 | 264764 |
| 24 | 324820 |
| 25 | 395417 |
| 26 | 477900 |
| 27 | 573724 |
| 28 | 684459 |
| 29 | 811795 |
| 30 | 957546 |
| 31 | 1123655 |
| 32 | 1312198 |
| 33 | 1525389 |
| 34 | 1765583 |
| 35 | 2035281 |
| 36 | 2337134 |
| 37 | 2673948 |
| 38 | 3048689 |
| 39 | 3464488 |
| 40 | 3924646 |
| 41 | 4432636 |
| 42 | 4992108 |
| 43 | 5606893 |
| 44 | 6281008 |
| 45 | 7018660 |
[1,7,27,78,188,399,771,1386,2352,3807,5924,8916, 13041,18606,25971,35554,47835,63361,82750,106695, 135968,171425,214011,264764,324820,395417,477900, 573724,684459,811795,957546,1123655,1312198, 1525389,1765583,2035281,2337134,2673948,3048689, 3464488,3924646,4432636,4992108,5606893,6281008, 7018660] |