n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 8 |
3 | 44 |
4 | 310 |
5 | 2606 |
6 | 25202 |
7 | 272582 |
8 | 3233738 |
9 | 41454272 |
10 | 567709144 |
11 | 8230728508 |
12 | 125413517530 |
13 | 1996446632130 |
14 | 33039704641922 |
15 | 566087847780250 |
16 | 10006446665899330 |
17 | 181938461947322284 |
18 | 3393890553702212368 |
19 | 64807885247524512668 |
20 | 1264344439859632559216 |
[1,2,8,44,310,2606,25202,272582,3233738,41454272, 567709144,8230728508,125413517530,1996446632130, 33039704641922,566087847780250,10006446665899330, 181938461947322284,3393890553702212368, 64807885247524512668,1264344439859632559216] |