n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 7 |
4 | 32 |
5 | 181 |
6 | 1232 |
7 | 9787 |
8 | 88832 |
9 | 907081 |
10 | 10291712 |
11 | 128445967 |
12 | 1748805632 |
13 | 25794366781 |
14 | 409725396992 |
15 | 6973071372547 |
16 | 126585529106432 |
17 | 2441591202059281 |
18 | 49863806091395072 |
19 | 1074927056650469527 |
20 | 24392086908129247232 |
21 | 581176736647853024581 |
[1,1,2,7,32,181,1232,9787,88832,907081,10291712, 128445967,1748805632,25794366781,409725396992, 6973071372547,126585529106432,2441591202059281, 49863806091395072,1074927056650469527, 24392086908129247232,581176736647853024581] |