n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 1 |
4 | 3 |
5 | 6 |
6 | 16 |
7 | 37 |
8 | 101 |
9 | 252 |
10 | 691 |
11 | 1819 |
12 | 5014 |
13 | 13630 |
14 | 37915 |
15 | 105125 |
16 | 295229 |
17 | 829714 |
18 | 2350106 |
19 | 6671030 |
20 | 19035055 |
21 | 54452982 |
22 | 156358967 |
23 | 450089260 |
24 | 1299394185 |
25 | 3759776618 |
26 | 10904685696 |
27 | 31690917170 |
28 | 92283005769 |
29 | 269201392276 |
30 | 786639839881 |
31 | 2302254813072 |
32 | 6748059023185 |
33 | 19806420012004 |
[1,0,1,1,3,6,16,37,101,252,691,1819,5014,13630, 37915,105125,295229,829714,2350106,6671030, 19035055,54452982,156358967,450089260,1299394185, 3759776618,10904685696,31690917170,92283005769, 269201392276,786639839881,2302254813072, 6748059023185,19806420012004] |