n | a(n) |
---|---|
1 | 2 |
2 | 3 |
3 | 15 |
4 | 22 |
5 | 98 |
6 | 460 |
7 | 5408 |
8 | 21170 |
9 | 243568 |
10 | 3587402 |
11 | 25881424 |
12 | 25888784 |
13 | 33305870 |
14 | 61202192 |
15 | 115333190 |
16 | 135135182 |
17 | 167241932 |
18 | 788355824 |
19 | 788360176 |
20 | 1653570248 |
[2,3,15,22,98,460,5408,21170,243568,3587402, 25881424,25888784,33305870,61202192,115333190, 135135182,167241932,788355824,788360176, 1653570248] |