n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 0 |
3 | 2 |
4 | 2 |
5 | 6 |
6 | 14 |
7 | 30 |
8 | 80 |
9 | 191 |
10 | 482 |
11 | 1253 |
12 | 3178 |
13 | 8370 |
14 | 21908 |
15 | 57861 |
16 | 154262 |
17 | 411724 |
18 | 1106990 |
19 | 2986434 |
20 | 8085282 |
21 | 21978895 |
22 | 59905632 |
23 | 163786142 |
24 | 448976298 |
25 | 1233655230 |
26 | 3397615736 |
27 | 9376447532 |
28 | 25926798104 |
29 | 71819992609 |
30 | 199282159404 |
31 | 553834902261 |
32 | 1541463298372 |
[1,1,0,2,2,6,14,30,80,191,482,1253,3178,8370, 21908,57861,154262,411724,1106990,2986434,8085282, 21978895,59905632,163786142,448976298,1233655230, 3397615736,9376447532,25926798104,71819992609, 199282159404,553834902261,1541463298372] |