A366192 - cp's OEIS frontend

A366192 Pairs (i, j) of noncoprime positive integers sorted first by i + j then by i.

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

[2, 2, 2, 4, 3, 3, 4, 2, 2, 6, 4, 4, 6, 2, 3, 6, 6, 3, 2, 8, 4, 6, 5, 5, 6, 4, 8, 2, 2, 10, 3, 9, 4, 8, 6, 6, 8, 4, 9, 3, 10, 2, 2, 12, 4, 10, 6, 8, 7, 7, 8, 6, 10, 4, 12, 2, 3, 12, 5, 10, 6, 9, 9, 6, 10, 5, 12, 3, 2, 14, 4, 12, 6, 10, 8, 8, 10, 6, 12, 4, 14, 2]

cp's OEIS Frontend

A366192 Pairs (i, j) of noncoprime positive integers sorted first by i + j then by i.

Table of values

List of values

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

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

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