n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 5 |
3 | 0 |
4 | 15 |
5 | 2 |
6 | 35 |
7 | 10 |
8 | 70 |
9 | 30 |
10 | 128 |
11 | 70 |
12 | 220 |
13 | 140 |
14 | 360 |
15 | 254 |
16 | 565 |
17 | 430 |
18 | 855 |
19 | 690 |
20 | 1255 |
21 | 1060 |
22 | 1795 |
23 | 1570 |
24 | 2510 |
25 | 2256 |
26 | 3440 |
27 | 3160 |
28 | 4630 |
29 | 4330 |
30 | 6132 |
31 | 5820 |
32 | 8005 |
33 | 7690 |
34 | 10315 |
35 | 10008 |
36 | 13135 |
37 | 12850 |
38 | 16545 |
39 | 16300 |
40 | 20634 |
41 | 20450 |
42 | 25500 |
43 | 25400 |
44 | 31250 |
45 | 31260 |
[1,0,5,0,15,2,35,10,70,30,128,70,220,140,360,254, 565,430,855,690,1255,1060,1795,1570,2510,2256, 3440,3160,4630,4330,6132,5820,8005,7690,10315, 10008,13135,12850,16545,16300,20634,20450,25500, 25400,31250,31260] |