A185348 - cp's OEIS frontend

A185348 Number of ordered quadruples of distinct pairwise coprime positive integers with largest element n; also first differences of A015623.

n	a(n)
1	0
2	0
3	0
4	0
5	2
6	0
7	8
8	4
9	10
10	2
11	42
12	4
13	79
14	16
15	25
16	36
17	183
18	20
19	277
20	50
21	100
22	70
23	491
24	56
25	399
26	139
27	340
28	146
29	1016
30	56
31	1285
32	398
33	493
34	342
35	706
36	184
37	2150
38	501
39	807
40	363
41	2968
42	210
43	3522
44	775
45	935
46	904
47	4620
48	508
49	3732
50	842
51	2011
52	1255
53	6684
54	728
55	3355
56	1304
57	2785
58	1877
59	9141
60	546

[0, 0, 0, 0, 2, 0, 8, 4, 10, 2, 42, 4, 79, 16, 25, 36, 183, 20, 277, 50, 100, 70, 491, 56, 399, 139, 340, 146, 1016, 56, 1285, 398, 493, 342, 706, 184, 2150, 501, 807, 363, 2968, 210, 3522, 775, 935, 904, 4620, 508, 3732, 842, 2011, 1255, 6684, 728, 3355, 1304, 2785, 1877, 9141, 546]

cp's OEIS Frontend

A185348 Number of ordered quadruples of distinct pairwise coprime positive integers with largest element n; also first differences of A015623.

Table of values

List of values