n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 9 |
3 | 47 |
4 | 150 |
5 | 797 |
6 | 3338 |
7 | 7473 |
8 | 451718 |
9 | 910909 |
10 | 4095354 |
11 | 21387679 |
12 | 68258391 |
13 | 362679634 |
14 | 1518976927 |
15 | 3400633488 |
16 | 205556986207 |
17 | 414514605902 |
18 | 1863615409815 |
19 | 9732591654977 |
20 | 31061390374746 |
21 | 165039543528707 |
22 | 691219564489574 |
23 | 1547478672507855 |
24 | 93539939914960874 |
[1,2,9,47,150,797,3338,7473,451718,910909,4095354, 21387679,68258391,362679634,1518976927,3400633488, 205556986207,414514605902,1863615409815, 9732591654977,31061390374746,165039543528707, 691219564489574,1547478672507855, 93539939914960874] |