n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 45 |
4 | 820 |
5 | 19820 |
6 | 582007 |
7 | 19812744 |
8 | 760177656 |
9 | 32275309743 |
10 | 1497313010037 |
11 | 75208566398988 |
12 | 4062020902196139 |
13 | 234638046113989856 |
14 | 14432573619909530980 |
15 | 941883830760366274935 |
16 | 65013065172020161949992 |
17 | 4733236746727327140204578 |
18 | 362575149419405494321544263 |
[1,1,4,45,820,19820,582007,19812744,760177656, 32275309743,1497313010037,75208566398988, 4062020902196139,234638046113989856, 14432573619909530980,941883830760366274935, 65013065172020161949992,4733236746727327140204578, 362575149419405494321544263] |