n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 9 |
6 | 58 |
7 | 341 |
8 | 1983 |
9 | 11776 |
10 | 72345 |
11 | 462173 |
12 | 3075894 |
13 | 21330762 |
14 | 154050330 |
15 | 1157493707 |
16 | 9037925277 |
17 | 73244123107 |
18 | 615295131046 |
19 | 5351329029624 |
20 | 48126530239366 |
21 | 447043890866154 |
22 | 4284293705043796 |
23 | 42317095568379559 |
24 | 430355360965092107 |
25 | 4501973706497500364 |
[0,0,0,0,1,9,58,341,1983,11776,72345,462173, 3075894,21330762,154050330,1157493707,9037925277, 73244123107,615295131046,5351329029624, 48126530239366,447043890866154,4284293705043796, 42317095568379559,430355360965092107, 4501973706497500364] |