n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 12 |
5 | 37 |
6 | 129 |
7 | 463 |
8 | 1739 |
9 | 6714 |
10 | 26604 |
11 | 107525 |
12 | 442184 |
13 | 1844112 |
14 | 7785086 |
15 | 33204662 |
16 | 142898151 |
17 | 619768375 |
18 | 2706503596 |
19 | 11890979967 |
20 | 52525690191 |
21 | 233144640014 |
22 | 1039370171657 |
23 | 4651849092472 |
24 | 20894660613343 |
25 | 94159212583127 |
26 | 425587094508458 |
27 | 1928886535320443 |
28 | 8764438279695072 |
[1,1,2,4,12,37,129,463,1739,6714,26604,107525, 442184,1844112,7785086,33204662,142898151, 619768375,2706503596,11890979967,52525690191, 233144640014,1039370171657,4651849092472, 20894660613343,94159212583127,425587094508458, 1928886535320443,8764438279695072] |