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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 0 |
| 6 | 1 |
| 7 | 1 |
| 8 | 2 |
| 9 | 5 |
| 10 | 5 |
| 11 | 7 |
| 12 | 10 |
| 13 | 12 |
| 14 | 17 |
| 15 | 23 |
| 16 | 30 |
| 17 | 35 |
| 18 | 49 |
| 19 | 61 |
| 20 | 78 |
| 21 | 97 |
| 22 | 124 |
| 23 | 155 |
| 24 | 200 |
| 25 | 243 |
| 26 | 307 |
| 27 | 375 |
| 28 | 470 |
| 29 | 568 |
| 30 | 710 |
| 31 | 857 |
| 32 | 1051 |
| 33 | 1269 |
| 34 | 1554 |
| 35 | 1862 |
| 36 | 2265 |
| 37 | 2700 |
| 38 | 3273 |
| 39 | 3895 |
| 40 | 4685 |
| 41 | 5558 |
| 42 | 6658 |
| 43 | 7883 |
| 44 | 9394 |
| 45 | 11084 |
| 46 | 13167 |
| 47 | 15493 |
| 48 | 18336 |
| 49 | 21517 |
| 50 | 25367 |
| 51 | 29703 |
| 52 | 34914 |
[1,0,0,1,0,1,1,2,5,5,7,10,12,17,23,30,35,49,61,78, 97,124,155,200,243,307,375,470,568,710,857,1051, 1269,1554,1862,2265,2700,3273,3895,4685,5558,6658, 7883,9394,11084,13167,15493,18336,21517,25367, 29703,34914] |