n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 4 |
6 | 29 |
7 | 206 |
8 | 1708 |
9 | 15702 |
10 | 159737 |
11 | 1780696 |
12 | 21599745 |
13 | 283294740 |
14 | 3995630216 |
15 | 60312696452 |
16 | 970234088153 |
17 | 16571597074140 |
18 | 299518677455165 |
19 | 5711583170669554 |
20 | 114601867572247060 |
21 | 2413623459384988298 |
22 | 53238503492701261201 |
23 | 1227382998752177970288 |
24 | 29520591675204638641249 |
[1,0,0,0,1,4,29,206,1708,15702,159737,1780696, 21599745,283294740,3995630216,60312696452, 970234088153,16571597074140,299518677455165, 5711583170669554,114601867572247060, 2413623459384988298,53238503492701261201, 1227382998752177970288,29520591675204638641249] |