n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 7 |
4 | 37 |
5 | 266 |
6 | 2431 |
7 | 27007 |
8 | 353522 |
9 | 5329837 |
10 | 90960751 |
11 | 1733584106 |
12 | 36496226977 |
13 | 841146804577 |
14 | 21065166341402 |
15 | 569600638022431 |
16 | 16539483668991901 |
17 | 513293594376771362 |
18 | 16955228098102446847 |
19 | 593946277027962411007 |
20 | 21992967478132711654106 |
21 | 858319677924203716921141 |
[1,1,2,7,37,266,2431,27007,353522,5329837, 90960751,1733584106,36496226977,841146804577, 21065166341402,569600638022431,16539483668991901, 513293594376771362,16955228098102446847, 593946277027962411007,21992967478132711654106, 858319677924203716921141] |