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| n | a(n) |
|---|---|
| 11 | 1 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 0 |
| 21 | 10 |
| 22 | 21 |
| 23 | 22 |
| 24 | 23 |
| 25 | 24 |
| 26 | 25 |
| 27 | 26 |
| 28 | 27 |
| 29 | 28 |
| 30 | 29 |
| 31 | 175 |
| 32 | 496 |
| 33 | 1024 |
| 34 | 1617 |
| 35 | 2278 |
| 36 | 3010 |
| 37 | 3816 |
| 38 | 4699 |
| 39 | 5662 |
| 40 | 6708 |
| 41 | 10310 |
| 42 | 19721 |
| 43 | 39074 |
| 44 | 73487 |
| 45 | 125862 |
| 46 | 199365 |
| 47 | 297436 |
| 48 | 423799 |
| 49 | 582472 |
| 50 | 777777 |
| 51 | 1060410 |
| 52 | 1547051 |
| 53 | 2443649 |
| 54 | 4072732 |
| 55 | 6905106 |
| 56 | 11528110 |
[1,0,0,0,0,0,0,0,0,0,10,21,22,23,24,25,26,27,28, 29,175,496,1024,1617,2278,3010,3816,4699,5662, 6708,10310,19721,39074,73487,125862,199365,297436, 423799,582472,777777,1060410,1547051,2443649, 4072732,6905106,11528110] |