n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 1 |
6 | 5 |
7 | 15 |
8 | 35 |
9 | 70 |
10 | 127 |
11 | 215 |
12 | 360 |
13 | 605 |
14 | 1080 |
15 | 2003 |
16 | 3890 |
17 | 7570 |
18 | 14715 |
19 | 27960 |
20 | 52255 |
21 | 95705 |
22 | 173295 |
23 | 311060 |
24 | 557400 |
25 | 999032 |
26 | 1795880 |
27 | 3235130 |
28 | 5835955 |
29 | 10521060 |
30 | 18931287 |
31 | 33956485 |
32 | 60692510 |
33 | 108087835 |
34 | 191883595 |
35 | 339724144 |
36 | 600203700 |
37 | 1058605775 |
38 | 1864535670 |
39 | 3279862975 |
40 | 5762287759 |
41 | 10109925380 |
[1,0,0,0,0,1,5,15,35,70,127,215,360,605,1080,2003, 3890,7570,14715,27960,52255,95705,173295,311060, 557400,999032,1795880,3235130,5835955,10521060, 18931287,33956485,60692510,108087835,191883595, 339724144,600203700,1058605775,1864535670, 3279862975,5762287759,10109925380] |