n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 0 |
8 | 1 |
9 | 9 |
10 | 56 |
11 | 333 |
12 | 2108 |
13 | 14724 |
14 | 117169 |
15 | 1074526 |
16 | 11249092 |
17 | 130484439 |
18 | 1612782351 |
19 | 20497233072 |
20 | 260975054461 |
21 | 3273854883027 |
22 | 40073904283055 |
23 | 476142523109291 |
24 | 5477680380616386 |
25 | 60959857679340812 |
[0,0,0,0,0,0,0,1,9,56,333,2108,14724,117169, 1074526,11249092,130484439,1612782351,20497233072, 260975054461,3273854883027,40073904283055, 476142523109291,5477680380616386, 60959857679340812] |