n | a(n) |
---|---|
1 | 2 |
2 | 6 |
3 | 342 |
4 | 8372 |
5 | 15006 |
6 | 32942 |
7 | 45156 |
8 | 170982 |
9 | 369056 |
10 | 3008490 |
11 | 3954132 |
12 | 644931420 |
13 | 2009953056 |
14 | 12824996256 |
15 | 688604539866900 |
16 | 11580326725041402 |
17 | 26067179544075560 |
18 | 94815133778597582 |
19 | 502907499251402082 |
20 | 3337168950979864272 |
21 | 7864766939956291580 |
[2,6,342,8372,15006,32942,45156,170982,369056, 3008490,3954132,644931420,2009953056,12824996256, 688604539866900,11580326725041402, 26067179544075560,94815133778597582, 502907499251402082,3337168950979864272, 7864766939956291580] |