A292253 - cp's OEIS frontend

A292253 a(1) = 0, a(2) = 1, and for n > 2, a(n) = 2a(A252463(n)) + [n == 1 (mod 2)][J(3|n) == 1], where J is the Jacobi-symbol.

n	a(n)
1	0
2	1
3	2
4	2
5	4
6	4
7	8
8	4
9	4
10	8
11	17
12	8
13	35
14	16
15	8
16	8
17	70
18	8
19	140
20	16
21	16
22	34
23	281
24	16
25	9
26	70
27	8
28	32
29	562
30	16
31	1124
32	16
33	32
34	140
35	17
36	16
37	2249
38	280
39	68
40	32
41	4498
42	32
43	8996
44	68
45	16
46	562
47	17993
48	32
49	19
50	18
51	140
52	140
53	35986
54	16
55	32
56	64
57	280
58	1124
59	71973
60	32
61	143947
62	2248
63	32
64	32
65	64
66	64
67	287894
68	280
69	560
70	34
71	575789
72	32
73	1151579
74	4498
75	16
76	560
77	34
78	136
79	2303158
80	64

[0, 1, 2, 2, 4, 4, 8, 4, 4, 8, 17, 8, 35, 16, 8, 8, 70, 8, 140, 16, 16, 34, 281, 16, 9, 70, 8, 32, 562, 16, 1124, 16, 32, 140, 17, 16, 2249, 280, 68, 32, 4498, 32, 8996, 68, 16, 562, 17993, 32, 19, 18, 140, 140, 35986, 16, 32, 64, 280, 1124, 71973, 32, 143947, 2248, 32, 32, 64, 64, 287894, 280, 560, 34, 575789, 32, 1151579, 4498, 16, 560, 34, 136, 2303158, 64]

cp's OEIS Frontend

A292253 a(1) = 0, a(2) = 1, and for n > 2, a(n) = 2a(A252463(n)) + [n == 1 (mod 2)][J(3|n) == 1], where J is the Jacobi-symbol.

Table of values

List of values

cp's OEIS Frontend

A292253 a(1) = 0, a(2) = 1, and for n > 2, a(n) = 2*a(A252463(n)) + [n == 1 (mod 2)]*[J(3|n) == 1], where J is the Jacobi-symbol.

Table of values

List of values

A292253 a(1) = 0, a(2) = 1, and for n > 2, a(n) = 2a(A252463(n)) + [n == 1 (mod 2)][J(3|n) == 1], where J is the Jacobi-symbol.