n | a(n) |
---|---|
1 | 2 |
2 | 6 |
3 | 22 |
4 | 96 |
5 | 482 |
6 | 2736 |
7 | 17302 |
8 | 120576 |
9 | 917762 |
10 | 7574016 |
11 | 67354582 |
12 | 642041856 |
13 | 6530291042 |
14 | 70589700096 |
15 | 808090395862 |
16 | 9766250151936 |
17 | 124258689304322 |
18 | 1660195646078976 |
19 | 23239748527125142 |
20 | 340125128186658816 |
[2,6,22,96,482,2736,17302,120576,917762,7574016, 67354582,642041856,6530291042,70589700096, 808090395862,9766250151936,124258689304322, 1660195646078976,23239748527125142, 340125128186658816] |