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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 8 |
| 3 | 23 |
| 4 | 47 |
| 5 | 87 |
| 6 | 147 |
| 7 | 224 |
| 8 | 328 |
| 9 | 463 |
| 10 | 623 |
| 11 | 821 |
| 12 | 1049 |
| 13 | 1322 |
| 14 | 1644 |
| 15 | 2004 |
| 16 | 2420 |
| 17 | 2896 |
| 18 | 3418 |
| 19 | 4007 |
| 20 | 4647 |
| 21 | 5361 |
| 22 | 6153 |
| 23 | 7004 |
| 24 | 7940 |
| 25 | 8940 |
| 26 | 10032 |
| 27 | 11220 |
| 28 | 12480 |
| 29 | 13843 |
| 30 | 15313 |
| 31 | 16863 |
| 32 | 18527 |
| 33 | 20276 |
| 34 | 22146 |
| 35 | 24141 |
| 36 | 26229 |
| 37 | 28449 |
| 38 | 30767 |
| 39 | 33224 |
| 40 | 35824 |
| 41 | 38530 |
[0,2,8,23,47,87,147,224,328,463,623,821,1049,1322, 1644,2004,2420,2896,3418,4007,4647,5361,6153,7004, 7940,8940,10032,11220,12480,13843,15313,16863, 18527,20276,22146,24141,26229,28449,30767,33224, 35824,38530] |