n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 7 |
4 | 37 |
5 | 271 |
6 | 2341 |
7 | 23647 |
8 | 272917 |
9 | 3543631 |
10 | 51123781 |
11 | 811316287 |
12 | 14045783797 |
13 | 263429174191 |
14 | 5320671485221 |
15 | 115141595488927 |
16 | 2657827340990677 |
17 | 65185383514567951 |
18 | 1692767331628422661 |
19 | 46400793659664205567 |
20 | 1338843898122192101557 |
[0,1,1,7,37,271,2341,23647,272917,3543631, 51123781,811316287,14045783797,263429174191, 5320671485221,115141595488927,2657827340990677, 65185383514567951,1692767331628422661, 46400793659664205567,1338843898122192101557] |