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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 7 |
| 4 | 1 |
| 5 | 41 |
| 6 | 16 |
| 7 | 6 |
| 8 | 0 |
| 9 | 1 |
| 10 | 388 |
| 11 | 290 |
| 12 | 195 |
| 13 | 70 |
| 14 | 40 |
| 15 | 30 |
| 16 | 0 |
| 17 | 10 |
| 18 | 0 |
| 19 | 0 |
| 20 | 1 |
| 21 | 5789 |
| 22 | 6980 |
| 23 | 6910 |
| 24 | 4560 |
| 25 | 3030 |
| 26 | 2292 |
| 27 | 1230 |
| 28 | 780 |
| 29 | 600 |
| 30 | 180 |
| 31 | 236 |
| 32 | 60 |
| 33 | 45 |
| 34 | 60 |
| 35 | 0 |
| 36 | 0 |
| 37 | 15 |
| 38 | 0 |
| 39 | 0 |
| 40 | 0 |
| 41 | 1 |
| 42 | 133501 |
| 43 | 235270 |
| 44 | 313705 |
| 45 | 302505 |
| 46 | 260890 |
| 47 | 222509 |
| 48 | 174615 |
| 49 | 126780 |
| 50 | 102970 |
| 51 | 67165 |
| 52 | 50134 |
| 53 | 37485 |
| 54 | 20370 |
| 55 | 17990 |
| 56 | 11445 |
| 57 | 6552 |
| 58 | 4515 |
| 59 | 3570 |
| 60 | 1680 |
| 61 | 1785 |
| 62 | 154 |
| 63 | 735 |
| 64 | 455 |
| 65 | 140 |
| 66 | 0 |
| 67 | 105 |
| 68 | 105 |
| 69 | 0 |
| 70 | 0 |
| 71 | 0 |
| 72 | 21 |
| 73 | 0 |
| 74 | 0 |
| 75 | 0 |
| 76 | 0 |
| 77 | 1 |
[1,1,2,7,1,41,16,6,0,1,388,290,195,70,40,30,0,10, 0,0,1,5789,6980,6910,4560,3030,2292,1230,780,600, 180,236,60,45,60,0,0,15,0,0,0,1,133501,235270, 313705,302505,260890,222509,174615,126780,102970, 67165,50134,37485,20370,17990,11445,6552,4515, 3570,1680,1785,154,735,455,140,0,105,105,0,0,0,21, 0,0,0,0,1] |