A298208 - cp's OEIS frontend

A298208 a(n) is the smallest positive integer not yet in the sequence that shares a digit with a(n-2) and shares no digit with a(n-1); a(1) = 0, a(2) = 1.

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

[0, 1, 20, 11, 2, 10, 22, 13, 24, 3, 4, 23, 14, 25, 16, 5, 6, 15, 26, 17, 28, 7, 8, 27, 18, 29, 31, 9, 12, 39, 21, 30, 19, 32, 41, 33, 40, 35, 42, 36, 44, 37, 45, 38, 46, 53, 47, 50, 34, 51, 43, 52, 48, 55, 49, 56, 74, 58, 64, 57, 60, 54, 61, 59, 62, 75, 63, 70]

cp's OEIS Frontend

A298208 a(n) is the smallest positive integer not yet in the sequence that shares a digit with a(n-2) and shares no digit with a(n-1); a(1) = 0, a(2) = 1.

Table of values

List of values

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

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

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