A374351 - cp's OEIS frontend

A374351 Lexicographically earliest infinite sequence of distinct positive integers such that for any triple i,j,k of consecutive terms, gcd(i,k) = 1 and A007947(ijk) is a term in A002110.

n	a(n)
1	1
2	2
3	3
4	5
5	4
6	6
7	9
8	25
9	8
10	12
11	15
12	7
13	14
14	30
15	11
16	49
17	60
18	10
19	77
20	21
21	20
22	16
23	27
24	35
25	22
26	18
27	105
28	55
29	26
30	42
31	165
32	13
33	28
34	330
35	33
36	91
37	40
38	66
39	63
40	65
41	44
42	84
43	45
44	121
45	56
46	75
47	81
48	32
49	50
50	135
51	147
52	64
53	80
54	189
55	99
56	100
57	70
58	231
59	39
60	130
61	154
62	51
63	195
64	308
65	17
66	585
67	462
68	34
69	325
70	693

[1, 2, 3, 5, 4, 6, 9, 25, 8, 12, 15, 7, 14, 30, 11, 49, 60, 10, 77, 21, 20, 16, 27, 35, 22, 18, 105, 55, 26, 42, 165, 13, 28, 330, 33, 91, 40, 66, 63, 65, 44, 84, 45, 121, 56, 75, 81, 32, 50, 135, 147, 64, 80, 189, 99, 100, 70, 231, 39, 130, 154, 51, 195, 308, 17, 585, 462, 34, 325, 693]

cp's OEIS Frontend

A374351 Lexicographically earliest infinite sequence of distinct positive integers such that for any triple i,j,k of consecutive terms, gcd(i,k) = 1 and A007947(ijk) is a term in A002110.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	4
6	6
7	9
8	25
9	8
10	12
11	15
12	7
13	14
14	30
15	11
16	49
17	60
18	10
19	77
20	21
21	20
22	16
23	27
24	35
25	22
26	18
27	105
28	55
29	26
30	42
31	165
32	13
33	28
34	330
35	33
36	91
37	40
38	66
39	63
40	65
41	44
42	84
43	45
44	121
45	56
46	75
47	81
48	32
49	50
50	135
51	147
52	64
53	80
54	189
55	99
56	100
57	70
58	231
59	39
60	130
61	154
62	51
63	195
64	308
65	17
66	585
67	462
68	34
69	325
70	693

n	a(n)
1	1
2	2
3	3
4	5
5	4
6	6
7	9
8	25
9	8
10	12
11	15
12	7
13	14
14	30
15	11
16	49
17	60
18	10
19	77
20	21
21	20
22	16
23	27
24	35
25	22
26	18
27	105
28	55
29	26
30	42
31	165
32	13
33	28
34	330
35	33
36	91
37	40
38	66
39	63
40	65
41	44
42	84
43	45
44	121
45	56
46	75
47	81
48	32
49	50
50	135
51	147
52	64
53	80
54	189
55	99
56	100
57	70
58	231
59	39
60	130
61	154
62	51
63	195
64	308
65	17
66	585
67	462
68	34
69	325
70	693

cp's OEIS Frontend

A374351 Lexicographically earliest infinite sequence of distinct positive integers such that for any triple i,j,k of consecutive terms, gcd(i,k) = 1 and A007947(i*j*k) is a term in A002110.

Table of values

List of values

A374351 Lexicographically earliest infinite sequence of distinct positive integers such that for any triple i,j,k of consecutive terms, gcd(i,k) = 1 and A007947(ijk) is a term in A002110.

n	a(n)
1	1
2	2
3	3
4	5
5	4
6	6
7	9
8	25
9	8
10	12
11	15
12	7
13	14
14	30
15	11
16	49
17	60
18	10
19	77
20	21
21	20
22	16
23	27
24	35
25	22
26	18
27	105
28	55
29	26
30	42
31	165
32	13
33	28
34	330
35	33
36	91
37	40
38	66
39	63
40	65
41	44
42	84
43	45
44	121
45	56
46	75
47	81
48	32
49	50
50	135
51	147
52	64
53	80
54	189
55	99
56	100
57	70
58	231
59	39
60	130
61	154
62	51
63	195
64	308
65	17
66	585
67	462
68	34
69	325
70	693