n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 27 |
4 | 116 |
5 | 514 |
6 | 2353 |
7 | 10965 |
8 | 51848 |
9 | 247599 |
10 | 1191914 |
11 | 5772364 |
12 | 28090825 |
13 | 137232251 |
14 | 672550545 |
15 | 3304646991 |
16 | 16273110989 |
17 | 80280588915 |
18 | 396665046450 |
19 | 1962512116369 |
20 | 9720646295694 |
21 | 48195360979746 |
22 | 239159034845710 |
23 | 1187662016403211 |
24 | 5901789344165780 |
25 | 29344416116992106 |
26 | 145978614850978382 |
[1,2,7,27,116,514,2353,10965,51848,247599,1191914, 5772364,28090825,137232251,672550545,3304646991, 16273110989,80280588915,396665046450, 1962512116369,9720646295694,48195360979746, 239159034845710,1187662016403211,5901789344165780, 29344416116992106,145978614850978382] |