A299996 - cp's OEIS frontend

A299996 Lexicographic first sequence of positive integers such that a(n)*a(n+1) has a digit 6, and no term occurs twice.

n	a(n)
1	1
2	6
3	10
4	16
5	4
6	9
7	7
8	8
9	2
10	3
11	12
12	5
13	13
14	20
15	18
16	17
17	28
18	22
19	21
20	26
21	11
22	15
23	24
24	14
25	19
26	32
27	23
28	27
29	25
30	64
31	29
32	34
33	39
34	35
35	36
36	31
37	44
38	37
39	38
40	42
41	30
42	52
43	33
44	49
45	40
46	41
47	43
48	48
49	45
50	57
51	46
52	47
53	56
54	51
55	60
56	61
57	65
58	71
59	53
60	50
61	72
62	55
63	63
64	58
65	62
66	59
67	54
68	66
69	70
70	67
71	68
72	69
73	74
74	76
75	79
76	73
77	77
78	78
79	80
80	75
81	81
82	82
83	83
84	84
85	89
86	85
87	90
88	94
89	92

[1, 6, 10, 16, 4, 9, 7, 8, 2, 3, 12, 5, 13, 20, 18, 17, 28, 22, 21, 26, 11, 15, 24, 14, 19, 32, 23, 27, 25, 64, 29, 34, 39, 35, 36, 31, 44, 37, 38, 42, 30, 52, 33, 49, 40, 41, 43, 48, 45, 57, 46, 47, 56, 51, 60, 61, 65, 71, 53, 50, 72, 55, 63, 58, 62, 59, 54, 66, 70, 67, 68, 69, 74, 76, 79, 73, 77, 78, 80, 75, 81, 82, 83, 84, 89, 85, 90, 94, 92]

cp's OEIS Frontend

A299996 Lexicographic first sequence of positive integers such that a(n)*a(n+1) has a digit 6, and no term occurs twice.

Table of values

List of values

n	a(n)
1	1
2	6
3	10
4	16
5	4
6	9
7	7
8	8
9	2
10	3
11	12
12	5
13	13
14	20
15	18
16	17
17	28
18	22
19	21
20	26
21	11
22	15
23	24
24	14
25	19
26	32
27	23
28	27
29	25
30	64
31	29
32	34
33	39
34	35
35	36
36	31
37	44
38	37
39	38
40	42
41	30
42	52
43	33
44	49
45	40
46	41
47	43
48	48
49	45
50	57
51	46
52	47
53	56
54	51
55	60
56	61
57	65
58	71
59	53
60	50
61	72
62	55
63	63
64	58
65	62
66	59
67	54
68	66
69	70
70	67
71	68
72	69
73	74
74	76
75	79
76	73
77	77
78	78
79	80
80	75
81	81
82	82
83	83
84	84
85	89
86	85
87	90
88	94
89	92

n	a(n)
1	1
2	6
3	10
4	16
5	4
6	9
7	7
8	8
9	2
10	3
11	12
12	5
13	13
14	20
15	18
16	17
17	28
18	22
19	21
20	26
21	11
22	15
23	24
24	14
25	19
26	32
27	23
28	27
29	25
30	64
31	29
32	34
33	39
34	35
35	36
36	31
37	44
38	37
39	38
40	42
41	30
42	52
43	33
44	49
45	40
46	41
47	43
48	48
49	45
50	57
51	46
52	47
53	56
54	51
55	60
56	61
57	65
58	71
59	53
60	50
61	72
62	55
63	63
64	58
65	62
66	59
67	54
68	66
69	70
70	67
71	68
72	69
73	74
74	76
75	79
76	73
77	77
78	78
79	80
80	75
81	81
82	82
83	83
84	84
85	89
86	85
87	90
88	94
89	92

n	a(n)
1	1
2	6
3	10
4	16
5	4
6	9
7	7
8	8
9	2
10	3
11	12
12	5
13	13
14	20
15	18
16	17
17	28
18	22
19	21
20	26
21	11
22	15
23	24
24	14
25	19
26	32
27	23
28	27
29	25
30	64
31	29
32	34
33	39
34	35
35	36
36	31
37	44
38	37
39	38
40	42
41	30
42	52
43	33
44	49
45	40
46	41
47	43
48	48
49	45
50	57
51	46
52	47
53	56
54	51
55	60
56	61
57	65
58	71
59	53
60	50
61	72
62	55
63	63
64	58
65	62
66	59
67	54
68	66
69	70
70	67
71	68
72	69
73	74
74	76
75	79
76	73
77	77
78	78
79	80
80	75
81	81
82	82
83	83
84	84
85	89
86	85
87	90
88	94
89	92