n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 7 |
5 | 37 |
6 | 197 |
7 | 1172 |
8 | 8018 |
9 | 62814 |
10 | 556014 |
11 | 5488059 |
12 | 59740609 |
13 | 710771275 |
14 | 9174170011 |
15 | 127661752406 |
16 | 1904975488436 |
17 | 30341995265036 |
18 | 513771331467372 |
19 | 9215499383109573 |
20 | 174548332364311563 |
21 | 3481204991988351553 |
22 | 72920994844093191553 |
23 | 1600596371590399671784 |
[0,0,0,1,7,37,197,1172,8018,62814,556014,5488059, 59740609,710771275,9174170011,127661752406, 1904975488436,30341995265036,513771331467372, 9215499383109573,174548332364311563, 3481204991988351553,72920994844093191553, 1600596371590399671784] |