A184992 - cp's OEIS frontend

A184992 a(n) is the least positive integer not occurring earlier that shares a digit with a(n-1); a(1)=1.

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

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

cp's OEIS Frontend

A184992 a(n) is the least positive integer not occurring earlier that shares a digit with a(n-1); a(1)=1.

Table of values

List of values

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

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

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