A015698 - cp's OEIS frontend

A015698 Number of 5-tuples of different integers from [ 1,n ] with no common factors among pairs.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	2
8	3
9	6
10	6
11	32
12	33
13	105
14	114
15	128
16	157
17	385
18	400
19	831
20	886
21	1001
22	1076
23	2004
24	2074
25	2817
26	3022
27	3655
28	3880
29	6379
30	6449
31	10020
32	10978
33	12063
34	12791
35	14417
36	14767
37	21746
38	22977
39	25038
40	25860
41	36660
42	37110
43	51088
44	53449
45	56199

[0, 0, 0, 0, 0, 0, 2, 3, 6, 6, 32, 33, 105, 114, 128, 157, 385, 400, 831, 886, 1001, 1076, 2004, 2074, 2817, 3022, 3655, 3880, 6379, 6449, 10020, 10978, 12063, 12791, 14417, 14767, 21746, 22977, 25038, 25860, 36660, 37110, 51088, 53449, 56199]

cp's OEIS Frontend

A015698 Number of 5-tuples of different integers from [ 1,n ] with no common factors among pairs.

Table of values

List of values