n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 8 |
4 | 25 |
5 | 77 |
6 | 257 |
7 | 853 |
8 | 2946 |
9 | 10178 |
10 | 36005 |
11 | 127635 |
12 | 459307 |
13 | 1657395 |
14 | 6042087 |
15 | 22089132 |
16 | 81346477 |
17 | 300383933 |
18 | 1115251580 |
19 | 4151032922 |
20 | 15515158110 |
21 | 58122268630 |
22 | 218459019113 |
23 | 822782085889 |
24 | 3107215915981 |
25 | 11755843600909 |
26 | 44576827929909 |
27 | 169308082883825 |
28 | 644271153070229 |
29 | 2455271638906533 |
[1,1,3,8,25,77,257,853,2946,10178,36005,127635, 459307,1657395,6042087,22089132,81346477, 300383933,1115251580,4151032922,15515158110, 58122268630,218459019113,822782085889, 3107215915981,11755843600909,44576827929909, 169308082883825,644271153070229,2455271638906533] |