n | a(n) |
---|---|
1 | 1 |
2 | 7 |
3 | 49 |
4 | 252 |
5 | 1519 |
6 | 11585 |
7 | 86156 |
8 | 606221 |
9 | 4325033 |
10 | 31601858 |
11 | 230910283 |
12 | 1678821743 |
13 | 12222650420 |
14 | 89226320509 |
15 | 651653318187 |
16 | 4758063707123 |
17 | 34749854417031 |
18 | 253886944760666 |
19 | 1855215535222434 |
20 | 13557207303083137 |
[1,7,49,252,1519,11585,86156,606221,4325033, 31601858,230910283,1678821743,12222650420, 89226320509,651653318187,4758063707123, 34749854417031,253886944760666,1855215535222434, 13557207303083137] |