| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 3 |
| 7 | 3 |
| 8 | 5 |
| 9 | 8 |
| 10 | 10 |
| 11 | 13 |
| 12 | 22 |
| 13 | 25 |
| 14 | 34 |
| 15 | 49 |
| 16 | 62 |
| 17 | 77 |
| 18 | 108 |
| 19 | 132 |
| 20 | 172 |
| 21 | 221 |
| 22 | 276 |
| 23 | 345 |
| 24 | 448 |
| 25 | 544 |
| 26 | 680 |
| 27 | 851 |
| 28 | 1050 |
| 29 | 1280 |
| 30 | 1596 |
| 31 | 1931 |
| 32 | 2366 |
| 33 | 2884 |
| 34 | 3496 |
| 35 | 4220 |
| 36 | 5135 |
| 37 | 6144 |
| 38 | 7403 |
| 39 | 8890 |
| 40 | 10644 |
| 41 | 12679 |
| 42 | 15177 |
| 43 | 18007 |
| 44 | 21419 |
| 45 | 25399 |
| 46 | 30066 |
| 47 | 35488 |
| 48 | 41971 |
| 49 | 49344 |
| 50 | 58088 |
[0,0,0,1,1,1,3,3,5,8,10,13,22,25,34,49,62,77,108, 132,172,221,276,345,448,544,680,851,1050,1280, 1596,1931,2366,2884,3496,4220,5135,6144,7403,8890, 10644,12679,15177,18007,21419,25399,30066,35488, 41971,49344,58088] |