n | a(n) |
---|---|
4 | 1 |
5 | 0 |
6 | 5 |
7 | 5 |
8 | 21 |
9 | 35 |
10 | 85 |
11 | 175 |
12 | 366 |
13 | 730 |
14 | 1481 |
15 | 2925 |
16 | 5726 |
17 | 11110 |
18 | 21375 |
19 | 40766 |
20 | 77266 |
21 | 145495 |
22 | 272290 |
23 | 506836 |
24 | 938783 |
25 | 1730725 |
26 | 3176920 |
27 | 5808020 |
28 | 10578162 |
29 | 19197898 |
30 | 34725765 |
31 | 62616485 |
32 | 112574807 |
33 | 201827366 |
34 | 360885835 |
35 | 643679795 |
36 | 1145341756 |
37 | 2033369086 |
[1,0,5,5,21,35,85,175,366,730,1481,2925,5726, 11110,21375,40766,77266,145495,272290,506836, 938783,1730725,3176920,5808020,10578162,19197898, 34725765,62616485,112574807,201827366,360885835, 643679795,1145341756,2033369086] |