n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 25 |
5 | 73 |
6 | 283 |
7 | 911 |
8 | 3697 |
9 | 12561 |
10 | 52467 |
11 | 184471 |
12 | 785929 |
13 | 2829401 |
14 | 12229259 |
15 | 44795167 |
16 | 195742177 |
17 | 726541345 |
18 | 3202144483 |
19 | 12010174247 |
20 | 53300753657 |
21 | 201608659561 |
22 | 899838791419 |
23 | 3427434566831 |
24 | 15370709035601 |
25 | 58890032580913 |
[1,1,3,7,25,73,283,911,3697,12561,52467,184471, 785929,2829401,12229259,44795167,195742177, 726541345,3202144483,12010174247,53300753657, 201608659561,899838791419,3427434566831, 15370709035601,58890032580913] |