n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 9 |
5 | 31 |
6 | 141 |
7 | 823 |
8 | 5009 |
9 | 32671 |
10 | 252181 |
11 | 2203143 |
12 | 20062809 |
13 | 194886511 |
14 | 2105627421 |
15 | 24559293463 |
16 | 298779205409 |
17 | 3849283295551 |
18 | 53331796237861 |
19 | 780608097567783 |
20 | 11900618940664809 |
21 | 190559301996683791 |
22 | 3219596479104915501 |
23 | 56821283929863042103 |
24 | 1041441834338061113009 |
[1,1,1,3,9,31,141,823,5009,32671,252181,2203143, 20062809,194886511,2105627421,24559293463, 298779205409,3849283295551,53331796237861, 780608097567783,11900618940664809, 190559301996683791,3219596479104915501, 56821283929863042103,1041441834338061113009] |