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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 2 |
| 6 | 2 |
| 7 | 4 |
| 8 | 4 |
| 9 | 5 |
| 10 | 8 |
| 11 | 9 |
| 12 | 12 |
| 13 | 16 |
| 14 | 20 |
| 15 | 26 |
| 16 | 34 |
| 17 | 44 |
| 18 | 57 |
| 19 | 74 |
| 20 | 97 |
| 21 | 125 |
| 22 | 162 |
| 23 | 212 |
| 24 | 272 |
| 25 | 356 |
| 26 | 462 |
| 27 | 597 |
| 28 | 780 |
| 29 | 1010 |
| 30 | 1311 |
| 31 | 1706 |
| 32 | 2210 |
| 33 | 2873 |
| 34 | 3732 |
| 35 | 4841 |
| 36 | 6294 |
| 37 | 8168 |
| 38 | 10608 |
| 39 | 13781 |
| 40 | 17886 |
| 41 | 23237 |
| 42 | 30172 |
| 43 | 39177 |
| 44 | 50891 |
| 45 | 66072 |
| 46 | 85813 |
| 47 | 111446 |
| 48 | 144706 |
| 49 | 187947 |
| 50 | 244059 |
| 51 | 316937 |
| 52 | 411618 |
| 53 | 534503 |
| 54 | 694153 |
| 55 | 901461 |
[1,1,1,1,2,2,2,4,4,5,8,9,12,16,20,26,34,44,57,74, 97,125,162,212,272,356,462,597,780,1010,1311,1706, 2210,2873,3732,4841,6294,8168,10608,13781,17886, 23237,30172,39177,50891,66072,85813,111446,144706, 187947,244059,316937,411618,534503,694153,901461] |