n | a(n) |
---|---|
39 | 1 |
40 | 40 |
41 | 820 |
42 | 11480 |
43 | 123410 |
44 | 1086008 |
45 | 8145060 |
46 | 53524680 |
47 | 314457495 |
48 | 1677106640 |
49 | 8217822536 |
50 | 37353738800 |
51 | 158753389900 |
52 | 635013559600 |
53 | 2403979904200 |
54 | 8654327655120 |
55 | 29749251314475 |
56 | 97997533741800 |
57 | 310325523515700 |
58 | 947309492837400 |
59 | 2794563003870330 |
[1,40,820,11480,123410,1086008,8145060,53524680, 314457495,1677106640,8217822536,37353738800, 158753389900,635013559600,2403979904200, 8654327655120,29749251314475,97997533741800, 310325523515700,947309492837400,2794563003870330] |