| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 1 |
| 9 | 1 |
| 10 | 2 |
| 11 | 2 |
| 12 | 4 |
| 13 | 6 |
| 14 | 9 |
| 15 | 12 |
| 16 | 17 |
| 17 | 23 |
| 18 | 32 |
| 19 | 42 |
| 20 | 57 |
| 21 | 73 |
| 22 | 97 |
| 23 | 123 |
| 24 | 161 |
| 25 | 203 |
| 26 | 261 |
| 27 | 326 |
| 28 | 412 |
| 29 | 512 |
| 30 | 641 |
| 31 | 791 |
| 32 | 981 |
| 33 | 1200 |
| 34 | 1477 |
| 35 | 1797 |
| 36 | 2198 |
| 37 | 2659 |
| 38 | 3227 |
| 39 | 3885 |
| 40 | 4689 |
| 41 | 5622 |
| 42 | 6747 |
| 43 | 8051 |
| 44 | 9617 |
| 45 | 11430 |
| 46 | 13596 |
| 47 | 16096 |
| 48 | 19066 |
| 49 | 22492 |
| 50 | 26542 |
| 51 | 31210 |
| 52 | 36699 |
| 53 | 43018 |
[0,0,0,0,0,0,0,0,1,1,2,2,4,6,9,12,17,23,32,42,57, 73,97,123,161,203,261,326,412,512,641,791,981, 1200,1477,1797,2198,2659,3227,3885,4689,5622,6747, 8051,9617,11430,13596,16096,19066,22492,26542, 31210,36699,43018] |