n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 6 |
5 | 9 |
6 | 56 |
7 | 51 |
8 | 258 |
9 | 380 |
10 | 1500 |
11 | 1611 |
12 | 12298 |
13 | 10245 |
14 | 57108 |
15 | 121721 |
16 | 346146 |
17 | 474489 |
18 | 3589534 |
19 | 3397143 |
20 | 21984804 |
21 | 41570773 |
22 | 142619388 |
23 | 186027579 |
24 | 1476414178 |
25 | 1694455320 |
26 | 8146633638 |
27 | 15690141155 |
[0,0,1,6,9,56,51,258,380,1500,1611,12298,10245, 57108,121721,346146,474489,3589534,3397143, 21984804,41570773,142619388,186027579,1476414178, 1694455320,8146633638,15690141155] |