A228866 - cp's OEIS frontend

A228866 G.f.: A(x) = 1 + xB(x), where B(x) = 1 + x^2C(x)^2, C(x) = 1 + x^3D(x)^3, D(x) = 1 + x^4E(x)^4, ...

n	a(n)
0	1
1	1
2	0
3	1
4	0
5	0
6	2
7	0
8	0
9	1
10	6
11	0
12	0
13	6
14	6
15	24
16	0
17	15
18	26
19	48
20	36
21	140
22	120
23	60
24	288
25	279
26	600
27	660
28	1476
29	822
30	2166
31	2880
32	5100
33	7047
34	6300
35	14100
36	21440
37	30210
38	30054
39	62496
40	72060
41	123180
42	174780
43	253980
44	319488
45	497544
46	730560
47	976020
48	1654856
49	1997706
50	3085932
51	4160740
52	6426480

[1, 1, 0, 1, 0, 0, 2, 0, 0, 1, 6, 0, 0, 6, 6, 24, 0, 15, 26, 48, 36, 140, 120, 60, 288, 279, 600, 660, 1476, 822, 2166, 2880, 5100, 7047, 6300, 14100, 21440, 30210, 30054, 62496, 72060, 123180, 174780, 253980, 319488, 497544, 730560, 976020, 1654856, 1997706, 3085932, 4160740, 6426480]

cp's OEIS Frontend

A228866 G.f.: A(x) = 1 + xB(x), where B(x) = 1 + x^2C(x)^2, C(x) = 1 + x^3D(x)^3, D(x) = 1 + x^4E(x)^4, ...

Table of values

List of values

cp's OEIS Frontend

A228866 G.f.: A(x) = 1 + x*B(x), where B(x) = 1 + x^2*C(x)^2, C(x) = 1 + x^3*D(x)^3, D(x) = 1 + x^4*E(x)^4, ...

Table of values

List of values

A228866 G.f.: A(x) = 1 + xB(x), where B(x) = 1 + x^2C(x)^2, C(x) = 1 + x^3D(x)^3, D(x) = 1 + x^4E(x)^4, ...