n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 9 |
4 | 70 |
5 | 794 |
6 | 12055 |
7 | 233238 |
8 | 5556725 |
9 | 158931613 |
10 | 5350854707 |
11 | 208746406117 |
12 | 9315261027289 |
13 | 470405726166241 |
14 | 26636882237942128 |
15 | 1678097862705130667 |
16 | 116818375064650241036 |
17 | 8932347052564257212796 |
18 | 746244486452472386213939 |
19 | 67796741482683128375533560 |
[1,1,2,9,70,794,12055,233238,5556725,158931613, 5350854707,208746406117,9315261027289, 470405726166241,26636882237942128, 1678097862705130667,116818375064650241036, 8932347052564257212796,746244486452472386213939, 67796741482683128375533560] |