n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 22 |
4 | 76 |
5 | 268 |
6 | 977 |
7 | 3638 |
8 | 13804 |
9 | 53164 |
10 | 207342 |
11 | 817212 |
12 | 3250104 |
13 | 13026744 |
14 | 52567461 |
15 | 213394854 |
16 | 870845260 |
17 | 3570590668 |
18 | 14701822370 |
19 | 60765209876 |
20 | 252021314536 |
21 | 1048538259304 |
22 | 4375013741962 |
23 | 18302920281148 |
24 | 76756814078840 |
25 | 322618359099896 |
26 | 1358831330368732 |
[1,2,7,22,76,268,977,3638,13804,53164,207342, 817212,3250104,13026744,52567461,213394854, 870845260,3570590668,14701822370,60765209876, 252021314536,1048538259304,4375013741962, 18302920281148,76756814078840,322618359099896, 1358831330368732] |