n | a(n) |
---|---|
1 | 2 |
2 | 16 |
3 | 100 |
4 | 588 |
5 | 3649 |
6 | 22210 |
7 | 135560 |
8 | 827698 |
9 | 5055418 |
10 | 30875671 |
11 | 188551113 |
12 | 1151456304 |
13 | 7031841993 |
14 | 42943005672 |
15 | 262250032226 |
16 | 1601541435978 |
17 | 9780493464535 |
18 | 59728749093644 |
19 | 364759066990417 |
20 | 2227556706954487 |
[2,16,100,588,3649,22210,135560,827698,5055418, 30875671,188551113,1151456304,7031841993, 42943005672,262250032226,1601541435978, 9780493464535,59728749093644,364759066990417, 2227556706954487] |