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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 10 |
| 4 | 120 |
| 5 | 175 |
| 6 | 441 |
| 7 | 946 |
| 8 | 1045 |
| 9 | 1540 |
| 10 | 4900 |
| 11 | 5985 |
| 12 | 7140 |
| 13 | 23001 |
| 14 | 23725 |
| 15 | 48280 |
| 16 | 195661 |
| 17 | 245905 |
| 18 | 314755 |
| 19 | 801801 |
| 20 | 975061 |
| 21 | 1169686 |
| 22 | 3578401 |
| 23 | 10680265 |
| 24 | 27453385 |
| 25 | 55202400 |
| 26 | 63016921 |
| 27 | 101337426 |
| 28 | 132361021 |
| 29 | 197427385 |
| 30 | 258815701 |
| 31 | 432684460 |
| 32 | 477132085 |
| 33 | 837244045 |
[0,1,10,120,175,441,946,1045,1540,4900,5985,7140, 23001,23725,48280,195661,245905,314755,801801, 975061,1169686,3578401,10680265,27453385,55202400, 63016921,101337426,132361021,197427385,258815701, 432684460,477132085,837244045] |