n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 7 |
3 | 17 |
4 | 203 |
5 | 583 |
6 | 3491 |
7 | 10481 |
8 | 254963 |
9 | 779723 |
10 | 4798681 |
11 | 14831831 |
12 | 184091359 |
13 | 573076579 |
14 | 3577974043 |
15 | 11196388273 |
16 | 561766479043 |
17 | 1764905611763 |
18 | 11107979665181 |
19 | 35007455563451 |
20 | 441899444305669 |
21 | 1396202999849369 |
[1,1,7,17,203,583,3491,10481,254963,779723, 4798681,14831831,184091359,573076579,3577974043, 11196388273,561766479043,1764905611763, 11107979665181,35007455563451,441899444305669, 1396202999849369] |