n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 14 |
3 | 69 |
4 | 364 |
5 | 1964 |
6 | 10862 |
7 | 60849 |
8 | 344914 |
9 | 1970654 |
10 | 11336210 |
11 | 65550856 |
12 | 380715692 |
13 | 2219101122 |
14 | 12974182136 |
15 | 76050379457 |
16 | 446774956662 |
17 | 2629721680448 |
18 | 15504560993606 |
19 | 91547835411002 |
20 | 541254436678564 |
21 | 3203730923576886 |
22 | 18982695363209084 |
23 | 112579789273032820 |
24 | 668226265440813776 |
[1,3,14,69,364,1964,10862,60849,344914,1970654, 11336210,65550856,380715692,2219101122, 12974182136,76050379457,446774956662, 2629721680448,15504560993606,91547835411002, 541254436678564,3203730923576886, 18982695363209084,112579789273032820, 668226265440813776] |