n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | 3 |
4 | 40 |
5 | 185 |
6 | 2436 |
7 | 20797 |
8 | 307616 |
9 | 3869217 |
10 | 66259900 |
11 | 1091351261 |
12 | 21671302368 |
13 | 437191547377 |
14 | 9981020325836 |
15 | 236821065758565 |
16 | 6144729994822336 |
17 | 167019469703969345 |
18 | 4868403452056231164 |
19 | 148845363155530699789 |
20 | 4822574537456548631360 |
[1,0,2,3,40,185,2436,20797,307616,3869217, 66259900,1091351261,21671302368,437191547377, 9981020325836,236821065758565,6144729994822336, 167019469703969345,4868403452056231164, 148845363155530699789,4822574537456548631360] |