n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 9 |
3 | 76 |
4 | 1100 |
5 | 25176 |
6 | 846132 |
7 | 39321696 |
8 | 2413753344 |
9 | 189030205440 |
10 | 18383301319680 |
11 | 2172771551093760 |
12 | 306662748175330560 |
13 | 50933260598106862080 |
14 | 9832247390118248121600 |
15 | 2182733403365330313523200 |
16 | 552134185815355910465126400 |
17 | 157863713952139655599757721600 |
18 | 50654908373638564216229105664000 |
[1,2,9,76,1100,25176,846132,39321696,2413753344, 189030205440,18383301319680,2172771551093760, 306662748175330560,50933260598106862080, 9832247390118248121600,2182733403365330313523200, 552134185815355910465126400, 157863713952139655599757721600, 50654908373638564216229105664000] |