n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 5 |
3 | 40 |
4 | 405 |
5 | 4626 |
6 | 56360 |
7 | 716430 |
8 | 9392085 |
9 | 126044248 |
10 | 1723083930 |
11 | 23910223514 |
12 | 335912566824 |
13 | 4768447532200 |
14 | 68291880722182 |
15 | 985538181002940 |
16 | 14317376105810133 |
17 | 209213540276280758 |
18 | 3073003751985537656 |
19 | 45346188478477675122 |
20 | 671920054584212646330 |
21 | 9993514798883508502188 |
[0,1,5,40,405,4626,56360,716430,9392085,126044248, 1723083930,23910223514,335912566824,4768447532200, 68291880722182,985538181002940,14317376105810133, 209213540276280758,3073003751985537656, 45346188478477675122,671920054584212646330, 9993514798883508502188] |