A286890 - cp's OEIS frontend

A286890 a(n) is the least positive integer not yet in the sequence that shares its largest digit with that of a(n-1); a(1)=1.

n	a(n)
1	1
2	10
3	11
4	12
5	2
6	20
7	21
8	22
9	23
10	3
11	13
12	30
13	31
14	32
15	33
16	34
17	4
18	14
19	24
20	40
21	41
22	42
23	43
24	44
25	45
26	5
27	15
28	25
29	35
30	50
31	51
32	52
33	53
34	54
35	55
36	56
37	6
38	16
39	26
40	36
41	46
42	60
43	61
44	62
45	63
46	64
47	65
48	66
49	67
50	7
51	17
52	27
53	37
54	47
55	57
56	70
57	71
58	72
59	73
60	74
61	75
62	76
63	77
64	78
65	8
66	18
67	28
68	38
69	48
70	58
71	68
72	80
73	81
74	82
75	83
76	84
77	85
78	86
79	87
80	88
81	89
82	9
83	19
84	29
85	39
86	49
87	59
88	69
89	79
90	90
91	91
92	92
93	93
94	94
95	95
96	96
97	97
98	98
99	99
100	109
101	119
102	129

[1, 10, 11, 12, 2, 20, 21, 22, 23, 3, 13, 30, 31, 32, 33, 34, 4, 14, 24, 40, 41, 42, 43, 44, 45, 5, 15, 25, 35, 50, 51, 52, 53, 54, 55, 56, 6, 16, 26, 36, 46, 60, 61, 62, 63, 64, 65, 66, 67, 7, 17, 27, 37, 47, 57, 70, 71, 72, 73, 74, 75, 76, 77, 78, 8, 18, 28, 38, 48, 58, 68, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 9, 19, 29, 39, 49, 59, 69, 79, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 109, 119, 129]

cp's OEIS Frontend

A286890 a(n) is the least positive integer not yet in the sequence that shares its largest digit with that of 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	22
9	23
10	3
11	13
12	30
13	31
14	32
15	33
16	34
17	4
18	14
19	24
20	40
21	41
22	42
23	43
24	44
25	45
26	5
27	15
28	25
29	35
30	50
31	51
32	52
33	53
34	54
35	55
36	56
37	6
38	16
39	26
40	36
41	46
42	60
43	61
44	62
45	63
46	64
47	65
48	66
49	67
50	7
51	17
52	27
53	37
54	47
55	57
56	70
57	71
58	72
59	73
60	74
61	75
62	76
63	77
64	78
65	8
66	18
67	28
68	38
69	48
70	58
71	68
72	80
73	81
74	82
75	83
76	84
77	85
78	86
79	87
80	88
81	89
82	9
83	19
84	29
85	39
86	49
87	59
88	69
89	79
90	90
91	91
92	92
93	93
94	94
95	95
96	96
97	97
98	98
99	99
100	109
101	119
102	129

n	a(n)
1	1
2	10
3	11
4	12
5	2
6	20
7	21
8	22
9	23
10	3
11	13
12	30
13	31
14	32
15	33
16	34
17	4
18	14
19	24
20	40
21	41
22	42
23	43
24	44
25	45
26	5
27	15
28	25
29	35
30	50
31	51
32	52
33	53
34	54
35	55
36	56
37	6
38	16
39	26
40	36
41	46
42	60
43	61
44	62
45	63
46	64
47	65
48	66
49	67
50	7
51	17
52	27
53	37
54	47
55	57
56	70
57	71
58	72
59	73
60	74
61	75
62	76
63	77
64	78
65	8
66	18
67	28
68	38
69	48
70	58
71	68
72	80
73	81
74	82
75	83
76	84
77	85
78	86
79	87
80	88
81	89
82	9
83	19
84	29
85	39
86	49
87	59
88	69
89	79
90	90
91	91
92	92
93	93
94	94
95	95
96	96
97	97
98	98
99	99
100	109
101	119
102	129

n	a(n)
1	1
2	10
3	11
4	12
5	2
6	20
7	21
8	22
9	23
10	3
11	13
12	30
13	31
14	32
15	33
16	34
17	4
18	14
19	24
20	40
21	41
22	42
23	43
24	44
25	45
26	5
27	15
28	25
29	35
30	50
31	51
32	52
33	53
34	54
35	55
36	56
37	6
38	16
39	26
40	36
41	46
42	60
43	61
44	62
45	63
46	64
47	65
48	66
49	67
50	7
51	17
52	27
53	37
54	47
55	57
56	70
57	71
58	72
59	73
60	74
61	75
62	76
63	77
64	78
65	8
66	18
67	28
68	38
69	48
70	58
71	68
72	80
73	81
74	82
75	83
76	84
77	85
78	86
79	87
80	88
81	89
82	9
83	19
84	29
85	39
86	49
87	59
88	69
89	79
90	90
91	91
92	92
93	93
94	94
95	95
96	96
97	97
98	98
99	99
100	109
101	119
102	129