A355867 - cp's OEIS frontend

A355867 Coefficients in the even function A(x) = Sum_{n>=0} a(n)x^(2n) such that: 2 = Sum_{n=-oo..+oo} x^n * (x^n + i*sqrt(A(x)))^n, where i^2 = -1.

n	a(n)
0	1
1	1
2	-1
3	-6
4	-3
5	27
6	64
7	-72
8	-580
9	-573
10	3276
11	10778
12	-4429
13	-94493
14	-153086
15	463061
16	2197569
17	604351
18	-17222574
19	-40338277
20	64029441
21	477897865
22	433963667
23	-3248816635
24	-10525409672
25	6577294016
26	106318417880
27	163863253517
28	-599970596239
29	-2714863450622

[1, 1, -1, -6, -3, 27, 64, -72, -580, -573, 3276, 10778, -4429, -94493, -153086, 463061, 2197569, 604351, -17222574, -40338277, 64029441, 477897865, 433963667, -3248816635, -10525409672, 6577294016, 106318417880, 163863253517, -599970596239, -2714863450622]

cp's OEIS Frontend

A355867 Coefficients in the even function A(x) = Sum_{n>=0} a(n)x^(2n) such that: 2 = Sum_{n=-oo..+oo} x^n * (x^n + i*sqrt(A(x)))^n, where i^2 = -1.

Table of values

List of values

cp's OEIS Frontend

A355867 Coefficients in the even function A(x) = Sum_{n>=0} a(n)*x^(2*n) such that: 2 = Sum_{n=-oo..+oo} x^n * (x^n + i*sqrt(A(x)))^n, where i^2 = -1.

Table of values

List of values

A355867 Coefficients in the even function A(x) = Sum_{n>=0} a(n)x^(2n) such that: 2 = Sum_{n=-oo..+oo} x^n * (x^n + i*sqrt(A(x)))^n, where i^2 = -1.