n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 22 |
4 | 85 |
5 | 336 |
6 | 1350 |
7 | 5492 |
8 | 22554 |
9 | 93300 |
10 | 388201 |
11 | 1622868 |
12 | 6811056 |
13 | 28680356 |
14 | 121111440 |
15 | 512684484 |
16 | 2174928031 |
17 | 9243973062 |
18 | 39354962345 |
19 | 167799259130 |
20 | 716414975613 |
21 | 3062437147352 |
22 | 13105366936465 |
23 | 56139506687280 |
[1,2,6,22,85,336,1350,5492,22554,93300,388201, 1622868,6811056,28680356,121111440,512684484, 2174928031,9243973062,39354962345,167799259130, 716414975613,3062437147352,13105366936465, 56139506687280] |