n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 25 |
4 | 182 |
5 | 1447 |
6 | 12175 |
7 | 106575 |
8 | 960579 |
9 | 8854622 |
10 | 83089537 |
11 | 791063172 |
12 | 7622317663 |
13 | 74191096721 |
14 | 728389554533 |
15 | 7204640725610 |
16 | 71727367291455 |
17 | 718195853746770 |
18 | 7227785937663908 |
19 | 73069500402699226 |
20 | 741712341691454837 |
21 | 7556704348506425398 |
[1,1,4,25,182,1447,12175,106575,960579,8854622, 83089537,791063172,7622317663,74191096721, 728389554533,7204640725610,71727367291455, 718195853746770,7227785937663908, 73069500402699226,741712341691454837, 7556704348506425398] |