n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 42 |
3 | 238 |
4 | 1316 |
5 | 7196 |
6 | 39158 |
7 | 212738 |
8 | 1155889 |
9 | 6287015 |
10 | 34249404 |
11 | 186920468 |
12 | 1022134288 |
13 | 5600420336 |
14 | 30745867316 |
15 | 169116129308 |
16 | 931937277257 |
17 | 5144687596447 |
18 | 28449040406262 |
19 | 157571572143538 |
20 | 874089046798212 |
[1,7,42,238,1316,7196,39158,212738,1155889, 6287015,34249404,186920468,1022134288,5600420336, 30745867316,169116129308,931937277257, 5144687596447,28449040406262,157571572143538, 874089046798212] |