n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 8 |
6 | 13 |
7 | 42 |
8 | 72 |
9 | 273 |
10 | 475 |
11 | 1970 |
12 | 3506 |
13 | 15368 |
14 | 27888 |
15 | 126510 |
16 | 233809 |
17 | 1086546 |
18 | 2039564 |
19 | 9652364 |
20 | 18360296 |
21 | 88172609 |
22 | 169610371 |
23 | 824506191 |
24 | 1601297937 |
25 | 7865294687 |
26 | 15401847339 |
27 | 76331857094 |
28 | 150547538649 |
29 | 751981532942 |
30 | 1492452957398 |
[1,1,1,2,3,8,13,42,72,273,475,1970,3506,15368, 27888,126510,233809,1086546,2039564,9652364, 18360296,88172609,169610371,824506191,1601297937, 7865294687,15401847339,76331857094,150547538649, 751981532942,1492452957398] |