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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 2 |
| 6 | 2 |
| 7 | 5 |
| 8 | 8 |
| 9 | 14 |
| 10 | 18 |
| 11 | 30 |
| 12 | 35 |
| 13 | 56 |
| 14 | 63 |
| 15 | 95 |
| 16 | 109 |
| 17 | 156 |
| 18 | 166 |
| 19 | 235 |
| 20 | 255 |
| 21 | 346 |
| 22 | 369 |
| 23 | 491 |
| 24 | 517 |
| 25 | 676 |
| 26 | 707 |
| 27 | 907 |
| 28 | 952 |
| 29 | 1200 |
| 30 | 1239 |
| 31 | 1548 |
| 32 | 1605 |
| 33 | 1974 |
| 34 | 2037 |
| 35 | 2481 |
| 36 | 2550 |
| 37 | 3078 |
| 38 | 3156 |
| 39 | 3774 |
| 40 | 3874 |
| 41 | 4592 |
| 42 | 4685 |
| 43 | 5522 |
| 44 | 5642 |
| 45 | 6596 |
| 46 | 6726 |
| 47 | 7818 |
| 48 | 7958 |
| 49 | 9200 |
| 50 | 9354 |
| 51 | 10754 |
| 52 | 10939 |
| 53 | 12510 |
[0,0,0,1,2,2,5,8,14,18,30,35,56,63,95,109,156,166, 235,255,346,369,491,517,676,707,907,952,1200,1239, 1548,1605,1974,2037,2481,2550,3078,3156,3774,3874, 4592,4685,5522,5642,6596,6726,7818,7958,9200,9354, 10754,10939,12510] |