n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 7 |
4 | 29 |
5 | 131 |
6 | 627 |
7 | 3124 |
8 | 16032 |
9 | 84162 |
10 | 449828 |
11 | 2439550 |
12 | 13391105 |
13 | 74256824 |
14 | 415357737 |
15 | 2340775363 |
16 | 13278009018 |
17 | 75753246286 |
18 | 434392031856 |
19 | 2502289328542 |
20 | 14473290097526 |
21 | 84023214062635 |
22 | 489424396591995 |
23 | 2859551104564120 |
24 | 16754209625090980 |
25 | 98415932763515679 |
26 | 579475837597933632 |
27 | 3419452319373566239 |
28 | 20219028961691299994 |
[1,1,2,7,29,131,627,3124,16032,84162,449828, 2439550,13391105,74256824,415357737,2340775363, 13278009018,75753246286,434392031856, 2502289328542,14473290097526,84023214062635, 489424396591995,2859551104564120, 16754209625090980,98415932763515679, 579475837597933632,3419452319373566239, 20219028961691299994] |