n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 8 |
4 | 22 |
5 | 121 |
6 | 406 |
7 | 2155 |
8 | 7624 |
9 | 40717 |
10 | 147001 |
11 | 792351 |
12 | 2892044 |
13 | 15703156 |
14 | 57728737 |
15 | 315180458 |
16 | 1164727748 |
17 | 6385672193 |
18 | 23691834033 |
19 | 130316812494 |
20 | 485018155062 |
21 | 2674846358141 |
22 | 9980763478121 |
23 | 55161813337474 |
24 | 206262229900060 |
25 | 1142020843590221 |
26 | 4277853480389546 |
27 | 23721423518350124 |
28 | 88991782850212510 |
[1,1,8,22,121,406,2155,7624,40717,147001,792351, 2892044,15703156,57728737,315180458,1164727748, 6385672193,23691834033,130316812494,485018155062, 2674846358141,9980763478121,55161813337474, 206262229900060,1142020843590221,4277853480389546, 23721423518350124,88991782850212510] |