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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 11 |
| 7 | 9 |
| 8 | 7 |
| 9 | 5 |
| 10 | 6 |
| 11 | 7 |
| 12 | 10 |
| 13 | 11 |
| 14 | 14 |
| 15 | 18 |
| 16 | 22 |
| 17 | 26 |
| 18 | 34 |
| 19 | 40 |
| 20 | 50 |
| 21 | 61 |
| 22 | 74 |
| 23 | 89 |
| 24 | 111 |
| 25 | 131 |
| 26 | 159 |
| 27 | 192 |
| 28 | 231 |
| 29 | 274 |
| 30 | 332 |
| 31 | 392 |
| 32 | 469 |
| 33 | 557 |
| 34 | 661 |
| 35 | 780 |
| 36 | 928 |
| 37 | 1088 |
| 38 | 1285 |
| 39 | 1511 |
| 40 | 1776 |
| 41 | 2076 |
| 42 | 2439 |
| 43 | 2843 |
| 44 | 3324 |
| 45 | 3873 |
| 46 | 4511 |
| 47 | 5238 |
| 48 | 6096 |
| 49 | 7057 |
| 50 | 8183 |
| 51 | 9466 |
[1,0,0,0,0,1,11,9,7,5,6,7,10,11,14,18,22,26,34,40, 50,61,74,89,111,131,159,192,231,274,332,392,469, 557,661,780,928,1088,1285,1511,1776,2076,2439, 2843,3324,3873,4511,5238,6096,7057,8183,9466] |