A285991 - cp's OEIS frontend

A285991 Expansion of Product_{n>0} ((1-x^n)/(1+x^n))^(n^4) in powers of x.

n	a(n)
0	1
1	-2
2	-30
3	-100
4	262
5	3672
6	13836
7	-80
8	-264810
9	-1421438
10	-3019032
11	7630764
12	89648580
13	358974280
14	548677872
15	-2390377936
16	-20531491146
17	-74635378020
18	-110275527170
19	425036176572
20	3669041188152
21	13597190512480
22	23995331740700
23	-45340748171760

[1, -2, -30, -100, 262, 3672, 13836, -80, -264810, -1421438, -3019032, 7630764, 89648580, 358974280, 548677872, -2390377936, -20531491146, -74635378020, -110275527170, 425036176572, 3669041188152, 13597190512480, 23995331740700, -45340748171760]

cp's OEIS Frontend

A285991 Expansion of Product_{n>0} ((1-x^n)/(1+x^n))^(n^4) in powers of x.

Table of values

List of values