n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 11 |
3 | 52 |
4 | 243 |
5 | 1252 |
6 | 5773 |
7 | 30118 |
8 | 138709 |
9 | 725582 |
10 | 3341873 |
11 | 17491838 |
12 | 80576661 |
13 | 421772338 |
14 | 1943163731 |
15 | 10170325444 |
16 | 46860603595 |
17 | 245231971772 |
18 | 1130003805543 |
19 | 5912852116740 |
20 | 27247159299515 |
21 | 142559083218360 |
22 | 656953537723871 |
23 | 3436953931249440 |
24 | 15838895888720931 |
25 | 82858490576755452 |
[1,2,11,52,243,1252,5773,30118,138709,725582, 3341873,17491838,80576661,421772338,1943163731, 10170325444,46860603595,245231971772, 1130003805543,5912852116740,27247159299515, 142559083218360,656953537723871,3436953931249440, 15838895888720931,82858490576755452] |