n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 17 |
4 | 140 |
5 | 1524 |
6 | 20673 |
7 | 336259 |
8 | 6382302 |
9 | 138525780 |
10 | 3384988809 |
11 | 91976158434 |
12 | 2751122721402 |
13 | 89833276321440 |
14 | 3179852538140115 |
15 | 121287919647418118 |
16 | 4959343701136929850 |
17 | 216406753768138678671 |
18 | 10037782414506891597734 |
19 | 493175891246093032826160 |
[1,1,3,17,140,1524,20673,336259,6382302,138525780, 3384988809,91976158434,2751122721402, 89833276321440,3179852538140115, 121287919647418118,4959343701136929850, 216406753768138678671,10037782414506891597734, 493175891246093032826160] |