n | a(n) |
---|---|
1 | 2 |
2 | 4 |
3 | 11 |
4 | 33 |
5 | 114 |
6 | 435 |
7 | 1829 |
8 | 8377 |
9 | 41504 |
10 | 220958 |
11 | 1256927 |
12 | 7602273 |
13 | 48676925 |
14 | 328685063 |
15 | 2332565079 |
16 | 17344752142 |
17 | 134774766541 |
18 | 1091701884974 |
19 | 9198355199792 |
20 | 80459135884925 |
21 | 729337831748484 |
22 | 6840215461149149 |
[2,4,11,33,114,435,1829,8377,41504,220958,1256927, 7602273,48676925,328685063,2332565079,17344752142, 134774766541,1091701884974,9198355199792, 80459135884925,729337831748484,6840215461149149] |