login

A118686 as a simple table

na(n)
01
11
2-1
31
4-2
51
61
7-4
85
9-2
101
11-10
1229
13-32
1412
151
16-16
1789
18-206
19204
20-72
211
22-46
23569
24-2876
256384
26-6192
272160
281
29-76
301949
31-19946
3292664
33-197712
34187920
35-64800
361
37-286
3817909
39-429236
404281324
41-19657152
4241707440
43-39528000
4413608000
451
46-496
4777969
48-4190126
4994420884
50-918735192
514169709360
52-8798090400
538314488000
54-2857680000

[1,1,-1,1,-2,1,1,-4,5,-2,1,-10,29,-32,12,1,-16,89,
 -206,204,-72,1,-46,569,-2876,6384,-6192,2160,1,
 -76,1949,-19946,92664,-197712,187920,-64800,1,
 -286,17909,-429236,4281324,-19657152,41707440,
 -39528000,13608000,1,-496,77969,-4190126,94420884,
 -918735192,4169709360,-8798090400,8314488000,
 -2857680000]