n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 5 |
5 | 13 |
6 | 37 |
7 | 112 |
8 | 363 |
9 | 1235 |
10 | 4427 |
11 | 16526 |
12 | 64351 |
13 | 259471 |
14 | 1083935 |
15 | 4668704 |
16 | 20732609 |
17 | 94607409 |
18 | 443476993 |
19 | 2130346450 |
20 | 10482534517 |
21 | 52740593933 |
22 | 271186949333 |
23 | 1423127827792 |
24 | 7618169603035 |
25 | 41554791114643 |
26 | 230857090312059 |
27 | 1305086617517534 |
[1,1,1,2,5,13,37,112,363,1235,4427,16526,64351, 259471,1083935,4668704,20732609,94607409, 443476993,2130346450,10482534517,52740593933, 271186949333,1423127827792,7618169603035, 41554791114643,230857090312059,1305086617517534] |