n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 4 |
4 | 37 |
5 | 602 |
6 | 14436 |
7 | 458062 |
8 | 18029992 |
9 | 845360028 |
10 | 45938606320 |
11 | 2836966508216 |
12 | 196156795008384 |
13 | 15008752290350656 |
14 | 1258841795197091392 |
15 | 114838947237881287800 |
16 | 11319937495659268412416 |
17 | 1198945386491423345685968 |
18 | 135784713567893046210563328 |
[1,1,1,4,37,602,14436,458062,18029992,845360028, 45938606320,2836966508216,196156795008384, 15008752290350656,1258841795197091392, 114838947237881287800,11319937495659268412416, 1198945386491423345685968, 135784713567893046210563328] |