n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 9 |
4 | 29 |
5 | 104 |
6 | 390 |
7 | 1482 |
8 | 5872 |
9 | 23670 |
10 | 96862 |
11 | 402409 |
12 | 1691824 |
13 | 7184785 |
14 | 30771333 |
15 | 132773241 |
16 | 577026236 |
17 | 2521811081 |
18 | 11077691844 |
19 | 48908119250 |
20 | 216832245702 |
21 | 964920349669 |
22 | 4309740197244 |
23 | 19311403519650 |
24 | 86782764283827 |
25 | 391070601747452 |
26 | 1766791977497850 |
27 | 8000592935633367 |
28 | 36308193503404528 |
[1,1,3,9,29,104,390,1482,5872,23670,96862,402409, 1691824,7184785,30771333,132773241,577026236, 2521811081,11077691844,48908119250,216832245702, 964920349669,4309740197244,19311403519650, 86782764283827,391070601747452,1766791977497850, 8000592935633367,36308193503404528] |