n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 0 |
4 | 3 |
5 | 4 |
6 | 8 |
7 | 10 |
8 | 55 |
9 | 72 |
10 | 294 |
11 | 378 |
12 | 1883 |
13 | 2440 |
14 | 11920 |
15 | 15408 |
16 | 78255 |
17 | 101330 |
18 | 517050 |
19 | 669658 |
20 | 3451712 |
21 | 4473984 |
22 | 23156964 |
23 | 30030364 |
24 | 156076271 |
25 | 202510224 |
26 | 1055435486 |
27 | 1370043450 |
28 | 7157673375 |
29 | 9295027344 |
30 | 48656943008 |
31 | 63208940422 |
32 | 331450961443 |
[1,0,0,3,4,8,10,55,72,294,378,1883,2440,11920, 15408,78255,101330,517050,669658,3451712,4473984, 23156964,30030364,156076271,202510224,1055435486, 1370043450,7157673375,9295027344,48656943008, 63208940422,331450961443] |