n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 10 |
4 | 36 |
5 | 137 |
6 | 543 |
7 | 2219 |
8 | 9285 |
9 | 39587 |
10 | 171369 |
11 | 751236 |
12 | 3328218 |
13 | 14878455 |
14 | 67030785 |
15 | 304036170 |
16 | 1387247580 |
17 | 6363044315 |
18 | 29323149825 |
19 | 135700543190 |
20 | 630375241380 |
21 | 2938391049395 |
22 | 13739779184085 |
23 | 64430797069375 |
24 | 302934667061301 |
25 | 1427763630578197 |
[1,1,3,10,36,137,543,2219,9285,39587,171369, 751236,3328218,14878455,67030785,304036170, 1387247580,6363044315,29323149825,135700543190, 630375241380,2938391049395,13739779184085, 64430797069375,302934667061301,1427763630578197] |