n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 22 |
5 | 88 |
6 | 366 |
7 | 1552 |
8 | 6652 |
9 | 28696 |
10 | 124310 |
11 | 540040 |
12 | 2350820 |
13 | 10248248 |
14 | 44725516 |
15 | 195354368 |
16 | 853829272 |
17 | 3733693872 |
18 | 16333556838 |
19 | 71476391800 |
20 | 312865382004 |
21 | 1369760107576 |
22 | 5998008630244 |
23 | 26268304208032 |
24 | 115055864102504 |
25 | 503997820344464 |
26 | 2207927106851580 |
27 | 9673223726469136 |
28 | 42382192892577128 |
29 | 185702341264971696 |
[1,1,2,6,22,88,366,1552,6652,28696,124310,540040, 2350820,10248248,44725516,195354368,853829272, 3733693872,16333556838,71476391800,312865382004, 1369760107576,5998008630244,26268304208032, 115055864102504,503997820344464,2207927106851580, 9673223726469136,42382192892577128, 185702341264971696] |