n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 10 |
4 | 61 |
5 | 218 |
6 | 3136 |
7 | 13514 |
8 | 272998 |
9 | 2362439 |
10 | 40899248 |
11 | 295024106 |
12 | 14045787790 |
13 | 81055130522 |
14 | 3040383719360 |
15 | 61408850927732 |
16 | 1661142088494553 |
17 | 15337737297545402 |
18 | 1128511554421317128 |
19 | 9768588138876674858 |
20 | 803306338873366385030 |
21 | 15452347618762680757428 |
[1,4,10,61,218,3136,13514,272998,2362439,40899248, 295024106,14045787790,81055130522,3040383719360, 61408850927732,1661142088494553,15337737297545402, 1128511554421317128,9768588138876674858, 803306338873366385030,15452347618762680757428] |