n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 21 |
3 | 93 |
4 | 429 |
5 | 1869 |
6 | 7821 |
7 | 32013 |
8 | 129549 |
9 | 521229 |
10 | 2091021 |
11 | 8376333 |
12 | 33529869 |
13 | 134168589 |
14 | 536772621 |
15 | 2147287053 |
[1,5,21,93,429,1869,7821,32013,129549,521229, 2091021,8376333,33529869,134168589,536772621, 2147287053] |