n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 44 |
6 | 152 |
7 | 571 |
8 | 2317 |
9 | 10096 |
10 | 47013 |
11 | 232944 |
12 | 1223428 |
13 | 6786936 |
14 | 39640947 |
15 | 243060305 |
16 | 1560340480 |
17 | 10461611439 |
18 | 73094563140 |
19 | 531127372268 |
20 | 4006242743228 |
21 | 31316162403165 |
22 | 253292622192153 |
23 | 2116823651781702 |
24 | 18255325000268015 |
25 | 162261535224570326 |
[1,1,2,5,14,44,152,571,2317,10096,47013,232944, 1223428,6786936,39640947,243060305,1560340480, 10461611439,73094563140,531127372268, 4006242743228,31316162403165,253292622192153, 2116823651781702,18255325000268015, 162261535224570326] |