A342383 - cp's OEIS frontend

A342383 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	7
7	6
8	8
9	9
10	10
11	13
12	12
13	14
14	15
15	16
16	18
17	17
18	19
19	20
20	21
21	24
22	23
23	25
24	26
25	27
26	29
27	28
28	30
29	31
30	32
31	35
32	34
33	36
34	37
35	38
36	40
37	39
38	41
39	42
40	43
41	46
42	45
43	47
44	48
45	49
46	53
47	50
48	52
49	51
50	54
51	69
52	56
53	64
54	59
55	61
56	62
57	58
58	65
59	60
60	63
61	57
62	67
63	68
64	70
65	72
66	71
67	74
68	73
69	75
70	78
71	76
72	80
73	79
74	81
75	82
76	83

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

cp's OEIS Frontend

A342383 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	7
7	6
8	8
9	9
10	10
11	13
12	12
13	14
14	15
15	16
16	18
17	17
18	19
19	20
20	21
21	24
22	23
23	25
24	26
25	27
26	29
27	28
28	30
29	31
30	32
31	35
32	34
33	36
34	37
35	38
36	40
37	39
38	41
39	42
40	43
41	46
42	45
43	47
44	48
45	49
46	53
47	50
48	52
49	51
50	54
51	69
52	56
53	64
54	59
55	61
56	62
57	58
58	65
59	60
60	63
61	57
62	67
63	68
64	70
65	72
66	71
67	74
68	73
69	75
70	78
71	76
72	80
73	79
74	81
75	82
76	83

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

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