n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 10 |
4 | 36 |
5 | 131 |
6 | 476 |
7 | 1728 |
8 | 6272 |
9 | 22765 |
10 | 82629 |
11 | 299915 |
12 | 1088589 |
13 | 3951206 |
14 | 14341527 |
15 | 52054840 |
16 | 188941273 |
17 | 685792227 |
18 | 2489191330 |
19 | 9034913540 |
20 | 32793647355 |
21 | 119029728628 |
22 | 432037221840 |
23 | 1568147413312 |
24 | 5691839002677 |
25 | 20659429692245 |
26 | 74986666876571 |
27 | 272175964826781 |
[1,3,10,36,131,476,1728,6272,22765,82629,299915, 1088589,3951206,14341527,52054840,188941273, 685792227,2489191330,9034913540,32793647355, 119029728628,432037221840,1568147413312, 5691839002677,20659429692245,74986666876571, 272175964826781] |