n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 8 |
3 | 251 |
4 | 2555 |
5 | 15055 |
6 | 63655 |
7 | 214918 |
8 | 616326 |
9 | 1561110 |
10 | 3586110 |
11 | 7612385 |
12 | 15139553 |
13 | 28506101 |
14 | 51229165 |
15 | 88438540 |
16 | 147420940 |
17 | 238291788 |
18 | 374813076 |
19 | 575377095 |
20 | 864177095 |
21 | 1272587195 |
22 | 1840775123 |
23 | 2619572626 |
24 | 3672629650 |
25 | 5078879650 |
26 | 6935344650 |
27 | 9360309933 |
[0,0,8,251,2555,15055,63655,214918,616326,1561110, 3586110,7612385,15139553,28506101,51229165, 88438540,147420940,238291788,374813076,575377095, 864177095,1272587195,1840775123,2619572626, 3672629650,5078879650,6935344650,9360309933] |