n | a(n) |
---|---|
7 | 1 |
8 | 2 |
9 | 6 |
10 | 15 |
11 | 40 |
12 | 104 |
13 | 273 |
14 | 714 |
15 | 1869 |
16 | 4891 |
17 | 12800 |
18 | 33498 |
19 | 87665 |
20 | 229422 |
21 | 600403 |
22 | 1571271 |
23 | 4112057 |
24 | 10761362 |
25 | 28162767 |
26 | 73702703 |
27 | 192881913 |
28 | 504777043 |
29 | 1321014806 |
30 | 3457130514 |
31 | 9047401540 |
32 | 23677287940 |
33 | 61964085679 |
34 | 162161642995 |
35 | 424381287495 |
36 | 1110616998258 |
[1,2,6,15,40,104,273,714,1869,4891,12800,33498, 87665,229422,600403,1571271,4112057,10761362, 28162767,73702703,192881913,504777043,1321014806, 3457130514,9047401540,23677287940,61964085679, 162161642995,424381287495,1110616998258] |