n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 5 |
5 | 12 |
6 | 35 |
7 | 122 |
8 | 390 |
9 | 1320 |
10 | 4631 |
11 | 16185 |
12 | 57707 |
13 | 208348 |
14 | 756840 |
15 | 2775012 |
16 | 10246206 |
17 | 38043339 |
18 | 142045387 |
19 | 532888840 |
20 | 2007554241 |
21 | 7592537590 |
22 | 28814794105 |
23 | 109702322730 |
24 | 418868083725 |
25 | 1603584623355 |
26 | 6154156653687 |
27 | 23671591739306 |
28 | 91242219125712 |
29 | 352378515196920 |
30 | 1363360128627380 |
[1,1,1,5,12,35,122,390,1320,4631,16185,57707, 208348,756840,2775012,10246206,38043339,142045387, 532888840,2007554241,7592537590,28814794105, 109702322730,418868083725,1603584623355, 6154156653687,23671591739306,91242219125712, 352378515196920,1363360128627380] |