| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 10 |
| 3 | 19 |
| 4 | 33 |
| 5 | 52 |
| 6 | 78 |
| 7 | 111 |
| 8 | 153 |
| 9 | 204 |
| 10 | 266 |
| 11 | 339 |
| 12 | 425 |
| 13 | 524 |
| 14 | 638 |
| 15 | 767 |
| 16 | 913 |
| 17 | 1076 |
| 18 | 1258 |
| 19 | 1459 |
| 20 | 1681 |
| 21 | 1924 |
| 22 | 2190 |
| 23 | 2479 |
| 24 | 2793 |
| 25 | 3132 |
| 26 | 3498 |
| 27 | 3891 |
| 28 | 4313 |
| 29 | 4764 |
| 30 | 5246 |
| 31 | 5759 |
| 32 | 6305 |
| 33 | 6884 |
| 34 | 7498 |
| 35 | 8147 |
| 36 | 8833 |
| 37 | 9556 |
| 38 | 10318 |
| 39 | 11119 |
| 40 | 11961 |
| 41 | 12844 |
| 42 | 13770 |
| 43 | 14739 |
| 44 | 15753 |
| 45 | 16812 |
| 46 | 17918 |
| 47 | 19071 |
| 48 | 20273 |
| 49 | 21524 |
[1,4,10,19,33,52,78,111,153,204,266,339,425,524, 638,767,913,1076,1258,1459,1681,1924,2190,2479, 2793,3132,3498,3891,4313,4764,5246,5759,6305,6884, 7498,8147,8833,9556,10318,11119,11961,12844,13770, 14739,15753,16812,17918,19071,20273,21524] |