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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 4 |
| 2 | 17 |
| 3 | 47 |
| 4 | 96 |
| 5 | 176 |
| 6 | 286 |
| 7 | 439 |
| 8 | 634 |
| 9 | 885 |
| 10 | 1188 |
| 11 | 1561 |
| 12 | 1997 |
| 13 | 2515 |
| 14 | 3108 |
| 15 | 3796 |
| 16 | 4569 |
| 17 | 5451 |
| 18 | 6429 |
| 19 | 7528 |
| 20 | 8735 |
| 21 | 10076 |
| 22 | 11535 |
| 23 | 13142 |
| 24 | 14878 |
| 25 | 16774 |
| 26 | 18811 |
| 27 | 21021 |
| 28 | 23382 |
| 29 | 25930 |
| 30 | 28640 |
| 31 | 31549 |
| 32 | 34632 |
| 33 | 37927 |
| 34 | 41406 |
| 35 | 45111 |
| 36 | 49011 |
| 37 | 53149 |
| 38 | 57494 |
[0,4,17,47,96,176,286,439,634,885,1188,1561,1997, 2515,3108,3796,4569,5451,6429,7528,8735,10076, 11535,13142,14878,16774,18811,21021,23382,25930, 28640,31549,34632,37927,41406,45111,49011,53149, 57494] |