| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 3 |
| 6 | 4 |
| 7 | 8 |
| 8 | 10 |
| 9 | 18 |
| 10 | 23 |
| 11 | 37 |
| 12 | 47 |
| 13 | 71 |
| 14 | 90 |
| 15 | 131 |
| 16 | 164 |
| 17 | 230 |
| 18 | 288 |
| 19 | 393 |
| 20 | 488 |
| 21 | 653 |
| 22 | 807 |
| 23 | 1060 |
| 24 | 1303 |
| 25 | 1686 |
| 26 | 2063 |
| 27 | 2637 |
| 28 | 3210 |
| 29 | 4057 |
| 30 | 4920 |
| 31 | 6158 |
| 32 | 7434 |
| 33 | 9228 |
| 34 | 11098 |
| 35 | 13671 |
| 36 | 16380 |
| 37 | 20040 |
| 38 | 23928 |
| 39 | 29098 |
| 40 | 34624 |
| 41 | 41869 |
| 42 | 49668 |
| 43 | 59755 |
| 44 | 70667 |
| 45 | 84626 |
| 46 | 99795 |
| 47 | 118991 |
[0,0,1,1,3,4,8,10,18,23,37,47,71,90,131,164,230, 288,393,488,653,807,1060,1303,1686,2063,2637,3210, 4057,4920,6158,7434,9228,11098,13671,16380,20040, 23928,29098,34624,41869,49668,59755,70667,84626, 99795,118991] |