n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 22 |
4 | 86 |
5 | 358 |
6 | 1554 |
7 | 6950 |
8 | 31822 |
9 | 148434 |
10 | 702802 |
11 | 3369046 |
12 | 16319050 |
13 | 79749294 |
14 | 392711090 |
15 | 1946732854 |
16 | 9706813790 |
17 | 48651303118 |
18 | 244972282734 |
19 | 1238621756174 |
20 | 6286144819506 |
21 | 32011282859598 |
22 | 163517409895602 |
23 | 837631563577814 |
24 | 4301996341244810 |
[1,2,6,22,86,358,1554,6950,31822,148434,702802, 3369046,16319050,79749294,392711090,1946732854, 9706813790,48651303118,244972282734,1238621756174, 6286144819506,32011282859598,163517409895602, 837631563577814,4301996341244810] |