A299403 - cp's OEIS frontend

A299403 Lexicographic first sequence of positive integers such that a(n)*a(n+1) has a digit 3, and no term occurs twice.

n	a(n)
1	1
2	3
3	10
4	13
5	11
6	12
7	25
8	14
9	17
10	2
11	15
12	9
13	4
14	8
15	29
16	7
17	5
18	6
19	22
20	16
21	19
22	18
23	20
24	65
25	21
26	23
27	31
28	27
29	39
30	24
31	43
32	32
33	26
34	36
35	37
36	28
37	44
38	30
39	41
40	33
41	40
42	34
43	45
44	52
45	46
46	42
47	55
48	56
49	47
50	49
51	48
52	57
53	53
54	51
55	38
56	35
57	58
58	54
59	59
60	60
61	50
62	61
63	62
64	63
65	64
66	68
67	74
68	72
69	81
70	66
71	93
72	67
73	69
74	70
75	76
76	71
77	73
78	84
79	75
80	85
81	78
82	82
83	77
84	79
85	80
86	92
87	83
88	86
89	97

[1, 3, 10, 13, 11, 12, 25, 14, 17, 2, 15, 9, 4, 8, 29, 7, 5, 6, 22, 16, 19, 18, 20, 65, 21, 23, 31, 27, 39, 24, 43, 32, 26, 36, 37, 28, 44, 30, 41, 33, 40, 34, 45, 52, 46, 42, 55, 56, 47, 49, 48, 57, 53, 51, 38, 35, 58, 54, 59, 60, 50, 61, 62, 63, 64, 68, 74, 72, 81, 66, 93, 67, 69, 70, 76, 71, 73, 84, 75, 85, 78, 82, 77, 79, 80, 92, 83, 86, 97]

cp's OEIS Frontend

A299403 Lexicographic first sequence of positive integers such that a(n)*a(n+1) has a digit 3, and no term occurs twice.

Table of values

List of values

n	a(n)
1	1
2	3
3	10
4	13
5	11
6	12
7	25
8	14
9	17
10	2
11	15
12	9
13	4
14	8
15	29
16	7
17	5
18	6
19	22
20	16
21	19
22	18
23	20
24	65
25	21
26	23
27	31
28	27
29	39
30	24
31	43
32	32
33	26
34	36
35	37
36	28
37	44
38	30
39	41
40	33
41	40
42	34
43	45
44	52
45	46
46	42
47	55
48	56
49	47
50	49
51	48
52	57
53	53
54	51
55	38
56	35
57	58
58	54
59	59
60	60
61	50
62	61
63	62
64	63
65	64
66	68
67	74
68	72
69	81
70	66
71	93
72	67
73	69
74	70
75	76
76	71
77	73
78	84
79	75
80	85
81	78
82	82
83	77
84	79
85	80
86	92
87	83
88	86
89	97

n	a(n)
1	1
2	3
3	10
4	13
5	11
6	12
7	25
8	14
9	17
10	2
11	15
12	9
13	4
14	8
15	29
16	7
17	5
18	6
19	22
20	16
21	19
22	18
23	20
24	65
25	21
26	23
27	31
28	27
29	39
30	24
31	43
32	32
33	26
34	36
35	37
36	28
37	44
38	30
39	41
40	33
41	40
42	34
43	45
44	52
45	46
46	42
47	55
48	56
49	47
50	49
51	48
52	57
53	53
54	51
55	38
56	35
57	58
58	54
59	59
60	60
61	50
62	61
63	62
64	63
65	64
66	68
67	74
68	72
69	81
70	66
71	93
72	67
73	69
74	70
75	76
76	71
77	73
78	84
79	75
80	85
81	78
82	82
83	77
84	79
85	80
86	92
87	83
88	86
89	97

n	a(n)
1	1
2	3
3	10
4	13
5	11
6	12
7	25
8	14
9	17
10	2
11	15
12	9
13	4
14	8
15	29
16	7
17	5
18	6
19	22
20	16
21	19
22	18
23	20
24	65
25	21
26	23
27	31
28	27
29	39
30	24
31	43
32	32
33	26
34	36
35	37
36	28
37	44
38	30
39	41
40	33
41	40
42	34
43	45
44	52
45	46
46	42
47	55
48	56
49	47
50	49
51	48
52	57
53	53
54	51
55	38
56	35
57	58
58	54
59	59
60	60
61	50
62	61
63	62
64	63
65	64
66	68
67	74
68	72
69	81
70	66
71	93
72	67
73	69
74	70
75	76
76	71
77	73
78	84
79	75
80	85
81	78
82	82
83	77
84	79
85	80
86	92
87	83
88	86
89	97