n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 9 |
4 | 39 |
5 | 375 |
6 | 685 |
7 | 8575 |
8 | 30485 |
9 | 162855 |
10 | 291627 |
11 | 5785857 |
12 | 10514427 |
13 | 250200951 |
14 | 461037291 |
15 | 854622483 |
16 | 3185234481 |
17 | 101381371377 |
18 | 190598779657 |
19 | 6833215763803 |
20 | 12935721409039 |
21 | 24559552771039 |
22 | 46750514134519 |
23 | 2051664357879617 |
24 | 3923102768811707 |
25 | 37581323659852375 |
[0,1,9,39,375,685,8575,30485,162855,291627, 5785857,10514427,250200951,461037291,854622483, 3185234481,101381371377,190598779657, 6833215763803,12935721409039,24559552771039, 46750514134519,2051664357879617,3923102768811707, 37581323659852375] |