n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 6 |
3 | 31 |
4 | 160 |
5 | 841 |
6 | 4494 |
7 | 24319 |
8 | 132864 |
9 | 731281 |
10 | 4048726 |
11 | 22523359 |
12 | 125797984 |
13 | 704966809 |
14 | 3961924126 |
15 | 22321190911 |
16 | 126027618304 |
17 | 712917362209 |
18 | 4039658528934 |
19 | 22924714957471 |
20 | 130271906898720 |
21 | 741188107113961 |
22 | 4221707080583086 |
23 | 24070622500965631 |
24 | 137369104574280960 |
25 | 784622537295845041 |
[0,1,6,31,160,841,4494,24319,132864,731281, 4048726,22523359,125797984,704966809,3961924126, 22321190911,126027618304,712917362209, 4039658528934,22924714957471,130271906898720, 741188107113961,4221707080583086, 24070622500965631,137369104574280960, 784622537295845041] |