n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 14 |
3 | 93 |
4 | 590 |
5 | 3710 |
6 | 23509 |
7 | 148796 |
8 | 940916 |
9 | 5952243 |
10 | 37655502 |
11 | 238204978 |
12 | 1506870209 |
13 | 9532433288 |
14 | 60301864000 |
15 | 381467462217 |
16 | 2413150656124 |
17 | 15265511608858 |
18 | 96569119066667 |
19 | 610893045560410 |
20 | 3864489168524208 |
21 | 24446630393071735 |
22 | 154648573589573678 |
[1,2,14,93,590,3710,23509,148796,940916,5952243, 37655502,238204978,1506870209,9532433288, 60301864000,381467462217,2413150656124, 15265511608858,96569119066667,610893045560410, 3864489168524208,24446630393071735, 154648573589573678] |