n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 8 |
4 | 27 |
5 | 79 |
6 | 292 |
7 | 900 |
8 | 3369 |
9 | 11131 |
10 | 41742 |
11 | 139002 |
12 | 546529 |
13 | 1829265 |
14 | 7113275 |
15 | 24903332 |
16 | 96838366 |
17 | 335955634 |
18 | 1345392796 |
19 | 4673507879 |
20 | 18615675149 |
21 | 66574809640 |
22 | 262503701044 |
23 | 933024442958 |
24 | 3796054662682 |
25 | 13418892324198 |
26 | 53794826244366 |
27 | 195768193280117 |
[1,1,3,8,27,79,292,900,3369,11131,41742,139002, 546529,1829265,7113275,24903332,96838366, 335955634,1345392796,4673507879,18615675149, 66574809640,262503701044,933024442958, 3796054662682,13418892324198,53794826244366, 195768193280117] |