A359919 - cp's OEIS frontend

A359919 a(n) = coefficient of x^n in A(x) such that x^2 = Sum_{n=-oo..+oo} x^(n(3n+1)/2) * (A(x)^(3n) - 1/A(x)^(3n+1)).

n	a(n)
0	1
1	0
2	1
3	5
4	19
5	65
6	211
7	681
8	2255
9	7830
10	28786
11	111230
12	443789
13	1795972
14	7284981
15	29466755
16	118834438
17	479034654
18	1936617163
19	7872885832
20	32226147305
21	132808096158
22	550444192577
23	2291095125465
24	9564074472264
25	40005894288101
26	167610376198140
27	703308153554903

[1, 0, 1, 5, 19, 65, 211, 681, 2255, 7830, 28786, 111230, 443789, 1795972, 7284981, 29466755, 118834438, 479034654, 1936617163, 7872885832, 32226147305, 132808096158, 550444192577, 2291095125465, 9564074472264, 40005894288101, 167610376198140, 703308153554903]

cp's OEIS Frontend

A359919 a(n) = coefficient of x^n in A(x) such that x^2 = Sum_{n=-oo..+oo} x^(n(3n+1)/2) * (A(x)^(3n) - 1/A(x)^(3n+1)).

Table of values

List of values

cp's OEIS Frontend

A359919 a(n) = coefficient of x^n in A(x) such that x^2 = Sum_{n=-oo..+oo} x^(n*(3*n+1)/2) * (A(x)^(3*n) - 1/A(x)^(3*n+1)).

Table of values

List of values

A359919 a(n) = coefficient of x^n in A(x) such that x^2 = Sum_{n=-oo..+oo} x^(n(3n+1)/2) * (A(x)^(3n) - 1/A(x)^(3n+1)).