n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 13 |
4 | 72 |
5 | 481 |
6 | 3745 |
7 | 33209 |
8 | 329868 |
9 | 3624270 |
10 | 43608474 |
11 | 570008803 |
12 | 8039735704 |
13 | 121673027607 |
14 | 1966231022067 |
15 | 33786076421499 |
16 | 615043147866660 |
17 | 11822938288619344 |
18 | 239298079351004608 |
19 | 5086498410027323134 |
20 | 113278368771499790136 |
21 | 2637549737582063583274 |
22 | 64082443707327038140602 |
23 | 1621782672366231029685407 |
[1,1,3,13,72,481,3745,33209,329868,3624270, 43608474,570008803,8039735704,121673027607, 1966231022067,33786076421499,615043147866660, 11822938288619344,239298079351004608, 5086498410027323134,113278368771499790136, 2637549737582063583274,64082443707327038140602, 1621782672366231029685407] |