n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 4 |
4 | 16 |
5 | 103 |
6 | 799 |
7 | 7286 |
8 | 71094 |
9 | 729974 |
10 | 7743818 |
11 | 84307887 |
12 | 937002302 |
13 | 10595117272 |
14 | 121568251909 |
15 | 1412555701804 |
16 | 16594126114458 |
17 | 196829590326284 |
18 | 2354703777373055 |
19 | 28385225424840078 |
20 | 344524656398655124 |
21 | 4207569734885041198 |
22 | 51674558137433627724 |
[1,1,1,4,16,103,799,7286,71094,729974,7743818, 84307887,937002302,10595117272,121568251909, 1412555701804,16594126114458,196829590326284, 2354703777373055,28385225424840078, 344524656398655124,4207569734885041198, 51674558137433627724] |