A342382 - cp's OEIS frontend

A342382 a(0) = 0; for n > 0, a(n) is the least positive integer not occurring earlier such that both the digits in a(n) and the digits in a(n-1)*a(n) are all distinct.

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	12
12	13
13	14
14	15
15	16
16	19
17	18
18	17
19	20
20	21
21	23
22	26
23	24
24	27
25	25
26	29
27	28
28	30
29	31
30	34
31	37
32	35
33	36
34	38
35	39
36	32
37	40
38	41
39	43
40	42
41	45
42	48
43	52
44	49
45	50
46	47
47	51
48	46
49	53
50	56
51	54
52	57
53	60
54	58
55	62
56	59
57	68
58	64
59	61
60	65
61	63
62	72
63	69
64	67
65	70
66	71
67	73
68	74
69	76
70	78
71	80
72	79
73	82
74	75
75	81
76	83

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 19, 18, 17, 20, 21, 23, 26, 24, 27, 25, 29, 28, 30, 31, 34, 37, 35, 36, 38, 39, 32, 40, 41, 43, 42, 45, 48, 52, 49, 50, 47, 51, 46, 53, 56, 54, 57, 60, 58, 62, 59, 68, 64, 61, 65, 63, 72, 69, 67, 70, 71, 73, 74, 76, 78, 80, 79, 82, 75, 81, 83]

cp's OEIS Frontend

A342382 a(0) = 0; for n > 0, a(n) is the least positive integer not occurring earlier such that both the digits in a(n) and the digits in a(n-1)*a(n) are all distinct.

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	12
12	13
13	14
14	15
15	16
16	19
17	18
18	17
19	20
20	21
21	23
22	26
23	24
24	27
25	25
26	29
27	28
28	30
29	31
30	34
31	37
32	35
33	36
34	38
35	39
36	32
37	40
38	41
39	43
40	42
41	45
42	48
43	52
44	49
45	50
46	47
47	51
48	46
49	53
50	56
51	54
52	57
53	60
54	58
55	62
56	59
57	68
58	64
59	61
60	65
61	63
62	72
63	69
64	67
65	70
66	71
67	73
68	74
69	76
70	78
71	80
72	79
73	82
74	75
75	81
76	83

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	12
12	13
13	14
14	15
15	16
16	19
17	18
18	17
19	20
20	21
21	23
22	26
23	24
24	27
25	25
26	29
27	28
28	30
29	31
30	34
31	37
32	35
33	36
34	38
35	39
36	32
37	40
38	41
39	43
40	42
41	45
42	48
43	52
44	49
45	50
46	47
47	51
48	46
49	53
50	56
51	54
52	57
53	60
54	58
55	62
56	59
57	68
58	64
59	61
60	65
61	63
62	72
63	69
64	67
65	70
66	71
67	73
68	74
69	76
70	78
71	80
72	79
73	82
74	75
75	81
76	83

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	12
12	13
13	14
14	15
15	16
16	19
17	18
18	17
19	20
20	21
21	23
22	26
23	24
24	27
25	25
26	29
27	28
28	30
29	31
30	34
31	37
32	35
33	36
34	38
35	39
36	32
37	40
38	41
39	43
40	42
41	45
42	48
43	52
44	49
45	50
46	47
47	51
48	46
49	53
50	56
51	54
52	57
53	60
54	58
55	62
56	59
57	68
58	64
59	61
60	65
61	63
62	72
63	69
64	67
65	70
66	71
67	73
68	74
69	76
70	78
71	80
72	79
73	82
74	75
75	81
76	83