A140211 - cp's OEIS frontend

A140211 a(n) = Product_{d == 3 (mod 4) and d|n} d.

n	a(n)
1	1
2	1
3	3
4	1
5	1
6	3
7	7
8	1
9	3
10	1
11	11
12	3
13	1
14	7
15	45
16	1
17	1
18	3
19	19
20	1
21	21
22	11
23	23
24	3
25	1
26	1
27	81
28	7
29	1
30	45
31	31
32	1
33	33
34	1
35	245
36	3
37	1
38	19
39	117
40	1
41	1
42	21
43	43
44	11
45	45
46	23
47	47
48	3
49	7
50	1
51	153
52	1
53	1
54	81
55	605
56	7
57	57
58	1
59	59
60	45
61	1
62	31
63	1323
64	1
65	1
66	33
67	67
68	1
69	69
70	245
71	71
72	3
73	1
74	1
75	3375
76	19
77	77
78	117
79	79
80	1
81	81
82	1

[1, 1, 3, 1, 1, 3, 7, 1, 3, 1, 11, 3, 1, 7, 45, 1, 1, 3, 19, 1, 21, 11, 23, 3, 1, 1, 81, 7, 1, 45, 31, 1, 33, 1, 245, 3, 1, 19, 117, 1, 1, 21, 43, 11, 45, 23, 47, 3, 7, 1, 153, 1, 1, 81, 605, 7, 57, 1, 59, 45, 1, 31, 1323, 1, 1, 33, 67, 1, 69, 245, 71, 3, 1, 1, 3375, 19, 77, 117, 79, 1, 81, 1]

cp's OEIS Frontend

A140211 a(n) = Product_{d == 3 (mod 4) and d|n} d.

Table of values

List of values