n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 54 |
3 | 852 |
4 | 12550 |
5 | 183356 |
6 | 2698108 |
7 | 40090728 |
8 | 600970566 |
9 | 9074671980 |
10 | 137844584020 |
11 | 2104090834456 |
12 | 32247569822364 |
13 | 495918392331992 |
14 | 7648690018326840 |
15 | 118264579157865424 |
16 | 1832624131015069254 |
17 | 28453041434367110220 |
18 | 442512540108817131364 |
[1,2,54,852,12550,183356,2698108,40090728, 600970566,9074671980,137844584020,2104090834456, 32247569822364,495918392331992,7648690018326840, 118264579157865424,1832624131015069254, 28453041434367110220,442512540108817131364] |