n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 6 |
6 | 77 |
7 | 504 |
8 | 2304 |
9 | 8350 |
10 | 25653 |
11 | 69576 |
12 | 171106 |
13 | 388752 |
14 | 827190 |
15 | 1665456 |
16 | 3198312 |
17 | 5895396 |
18 | 10483934 |
19 | 18062160 |
20 | 30252180 |
21 | 49402850 |
22 | 78855339 |
23 | 123286440 |
24 | 189147400 |
25 | 285219090 |
26 | 423307755 |
27 | 619109400 |
28 | 893275110 |
29 | 1272714300 |
30 | 1792178076 |
[0,0,0,0,6,77,504,2304,8350,25653,69576,171106, 388752,827190,1665456,3198312,5895396,10483934, 18062160,30252180,49402850,78855339,123286440, 189147400,285219090,423307755,619109400,893275110, 1272714300,1792178076] |