A383377 - cp's OEIS frontend

A383377 G.f. satisfies A(x) = Sum_{n>=0} x^n * abs(1/A(x)^n), where abs(F(x)) equals the series expansion formed by the unsigned coefficients in F(x).

n	a(n)
0	1
1	1
2	2
3	4
4	6
5	6
6	20
7	46
8	92
9	138
10	276
11	676
12	1476
13	3332
14	5670
15	11574
16	27262
17	61952
18	135354
19	222848
20	549226
21	1319282
22	3068894
23	6449978
24	10987080
25	27779594
26	67311236
27	157054012
28	313271538
29	579149708
30	1452091208
31	3548249288
32	7866783754
33	16098393372
34	32442930610
35	78084645030
36	180671169756

[1, 1, 2, 4, 6, 6, 20, 46, 92, 138, 276, 676, 1476, 3332, 5670, 11574, 27262, 61952, 135354, 222848, 549226, 1319282, 3068894, 6449978, 10987080, 27779594, 67311236, 157054012, 313271538, 579149708, 1452091208, 3548249288, 7866783754, 16098393372, 32442930610, 78084645030, 180671169756]

cp's OEIS Frontend

A383377 G.f. satisfies A(x) = Sum_{n>=0} x^n * abs(1/A(x)^n), where abs(F(x)) equals the series expansion formed by the unsigned coefficients in F(x).

Table of values

List of values