n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 6 |
3 | 33 |
4 | 280 |
5 | 3145 |
6 | 46956 |
7 | 823585 |
8 | 16781472 |
9 | 387422001 |
10 | 10000100440 |
11 | 285311670721 |
12 | 8916103479504 |
13 | 302875106592409 |
14 | 11112006930972780 |
15 | 437893890382391745 |
16 | 18446744078004651136 |
17 | 827240261886336764449 |
18 | 39346408075494964903956 |
19 | 1978419655660313589124321 |
[0,1,6,33,280,3145,46956,823585,16781472, 387422001,10000100440,285311670721,8916103479504, 302875106592409,11112006930972780, 437893890382391745,18446744078004651136, 827240261886336764449,39346408075494964903956, 1978419655660313589124321] |