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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 3 |
| 7 | 3 |
| 8 | 8 |
| 9 | 10 |
| 10 | 17 |
| 11 | 22 |
| 12 | 37 |
| 13 | 47 |
| 14 | 71 |
| 15 | 91 |
| 16 | 133 |
| 17 | 170 |
| 18 | 236 |
| 19 | 301 |
| 20 | 408 |
| 21 | 515 |
| 22 | 686 |
| 23 | 860 |
| 24 | 1119 |
| 25 | 1401 |
| 26 | 1798 |
| 27 | 2232 |
| 28 | 2829 |
| 29 | 3495 |
| 30 | 4378 |
| 31 | 5381 |
| 32 | 6682 |
| 33 | 8165 |
| 34 | 10060 |
| 35 | 12238 |
| 36 | 14958 |
| 37 | 18116 |
| 38 | 22018 |
| 39 | 26533 |
| 40 | 32071 |
| 41 | 38490 |
| 42 | 46265 |
| 43 | 55318 |
| 44 | 66193 |
| 45 | 78843 |
| 46 | 93949 |
| 47 | 111503 |
| 48 | 132326 |
[0,0,0,0,1,1,3,3,8,10,17,22,37,47,71,91,133,170, 236,301,408,515,686,860,1119,1401,1798,2232,2829, 3495,4378,5381,6682,8165,10060,12238,14958,18116, 22018,26533,32071,38490,46265,55318,66193,78843, 93949,111503,132326] |