n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 2 |
7 | 3 |
8 | 5 |
9 | 10 |
10 | 20 |
11 | 42 |
12 | 93 |
13 | 214 |
14 | 516 |
15 | 1307 |
16 | 3473 |
17 | 9659 |
18 | 28002 |
19 | 84257 |
20 | 262229 |
21 | 842196 |
22 | 2787864 |
23 | 9506796 |
24 | 33388393 |
25 | 120727844 |
26 | 449148808 |
27 | 1717595949 |
28 | 6743420017 |
29 | 27147152525 |
30 | 111931584098 |
31 | 472225684599 |
32 | 2037019695797 |
33 | 8979468552886 |
34 | 40432306870108 |
[1,0,0,1,1,1,2,3,5,10,20,42,93,214,516,1307,3473, 9659,28002,84257,262229,842196,2787864,9506796, 33388393,120727844,449148808,1717595949, 6743420017,27147152525,111931584098,472225684599, 2037019695797,8979468552886,40432306870108] |