n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 16 |
4 | 95 |
5 | 606 |
6 | 4032 |
7 | 27616 |
8 | 193167 |
9 | 1372930 |
10 | 9881498 |
11 | 71846160 |
12 | 526764680 |
13 | 3889340560 |
14 | 28888634400 |
15 | 215680108416 |
16 | 1617467908751 |
17 | 12177754012458 |
18 | 92004463332486 |
19 | 697263463622080 |
20 | 5298985086555090 |
21 | 40371796982444356 |
[1,3,16,95,606,4032,27616,193167,1372930,9881498, 71846160,526764680,3889340560,28888634400, 215680108416,1617467908751,12177754012458, 92004463332486,697263463622080,5298985086555090, 40371796982444356] |