n | a(n) |
---|---|
29 | 1 |
30 | 30 |
31 | 465 |
32 | 4960 |
33 | 40920 |
34 | 278256 |
35 | 1623160 |
36 | 8347680 |
37 | 38608020 |
38 | 163011640 |
39 | 635745396 |
40 | 2311801440 |
41 | 7898654920 |
42 | 25518731280 |
43 | 78378960360 |
44 | 229911617056 |
45 | 646626422970 |
46 | 1749695026860 |
47 | 4568648125690 |
48 | 11541847896480 |
49 | 28277527346376 |
50 | 67327446062800 |
51 | 156077261327400 |
[1,30,465,4960,40920,278256,1623160,8347680, 38608020,163011640,635745396,2311801440, 7898654920,25518731280,78378960360,229911617056, 646626422970,1749695026860,4568648125690, 11541847896480,28277527346376,67327446062800, 156077261327400] |