n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 8 |
4 | 15 |
5 | 49 |
6 | 136 |
7 | 446 |
8 | 815 |
9 | 2045 |
10 | 3833 |
11 | 8717 |
12 | 14272 |
13 | 39260 |
14 | 72840 |
15 | 210072 |
16 | 340127 |
17 | 791503 |
18 | 1695607 |
19 | 2740397 |
20 | 7948517 |
21 | 14258853 |
22 | 31589187 |
23 | 62871303 |
24 | 172680120 |
25 | 259553374 |
26 | 491879422 |
27 | 1390281126 |
28 | 3193983644 |
29 | 5509013560 |
30 | 11070386930 |
31 | 27804975886 |
32 | 57398653055 |
33 | 108014137383 |
[1,1,3,8,15,49,136,446,815,2045,3833,8717,14272, 39260,72840,210072,340127,791503,1695607,2740397, 7948517,14258853,31589187,62871303,172680120, 259553374,491879422,1390281126,3193983644, 5509013560,11070386930,27804975886,57398653055, 108014137383] |