n | a(n) |
---|---|
0 | 1 |
1 | 52 |
2 | 834 |
3 | 4760 |
4 | 24703 |
5 | 94980 |
6 | 343998 |
7 | 1077496 |
8 | 3222915 |
9 | 8844712 |
10 | 23381058 |
11 | 58359168 |
12 | 141244796 |
13 | 327974700 |
14 | 742169724 |
15 | 1627202744 |
16 | 3490345477 |
17 | 7301071680 |
18 | 14987511560 |
19 | 30138820888 |
20 | 59623576440 |
21 | 115928963656 |
[1,52,834,4760,24703,94980,343998,1077496,3222915, 8844712,23381058,58359168,141244796,327974700, 742169724,1627202744,3490345477,7301071680, 14987511560,30138820888,59623576440,115928963656] |