A135140 - cp's OEIS frontend

A135140 Numbers n such that n and n^2 do not contain successive identical digits.

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	13
12	14
13	16
14	17
15	18
16	19
17	23
18	24
19	25
20	26
21	27
22	28
23	29
24	31
25	32
26	36
27	37
28	39
29	41
30	42
31	43
32	45
33	48
34	49
35	51
36	52
37	53
38	54
39	56
40	57
41	59
42	61
43	63
44	64
45	68
46	69
47	71
48	72
49	73
50	74
51	75
52	78
53	79
54	81
55	82
56	84
57	86
58	87
59	89
60	91
61	92
62	93
63	95
64	96
65	97
66	98
67	101
68	102
69	103
70	104
71	121

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 13, 14, 16, 17, 18, 19, 23, 24, 25, 26, 27, 28, 29, 31, 32, 36, 37, 39, 41, 42, 43, 45, 48, 49, 51, 52, 53, 54, 56, 57, 59, 61, 63, 64, 68, 69, 71, 72, 73, 74, 75, 78, 79, 81, 82, 84, 86, 87, 89, 91, 92, 93, 95, 96, 97, 98, 101, 102, 103, 104, 121]

cp's OEIS Frontend

A135140 Numbers n such that n and n^2 do not contain successive identical digits.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	13
12	14
13	16
14	17
15	18
16	19
17	23
18	24
19	25
20	26
21	27
22	28
23	29
24	31
25	32
26	36
27	37
28	39
29	41
30	42
31	43
32	45
33	48
34	49
35	51
36	52
37	53
38	54
39	56
40	57
41	59
42	61
43	63
44	64
45	68
46	69
47	71
48	72
49	73
50	74
51	75
52	78
53	79
54	81
55	82
56	84
57	86
58	87
59	89
60	91
61	92
62	93
63	95
64	96
65	97
66	98
67	101
68	102
69	103
70	104
71	121

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	13
12	14
13	16
14	17
15	18
16	19
17	23
18	24
19	25
20	26
21	27
22	28
23	29
24	31
25	32
26	36
27	37
28	39
29	41
30	42
31	43
32	45
33	48
34	49
35	51
36	52
37	53
38	54
39	56
40	57
41	59
42	61
43	63
44	64
45	68
46	69
47	71
48	72
49	73
50	74
51	75
52	78
53	79
54	81
55	82
56	84
57	86
58	87
59	89
60	91
61	92
62	93
63	95
64	96
65	97
66	98
67	101
68	102
69	103
70	104
71	121

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	13
12	14
13	16
14	17
15	18
16	19
17	23
18	24
19	25
20	26
21	27
22	28
23	29
24	31
25	32
26	36
27	37
28	39
29	41
30	42
31	43
32	45
33	48
34	49
35	51
36	52
37	53
38	54
39	56
40	57
41	59
42	61
43	63
44	64
45	68
46	69
47	71
48	72
49	73
50	74
51	75
52	78
53	79
54	81
55	82
56	84
57	86
58	87
59	89
60	91
61	92
62	93
63	95
64	96
65	97
66	98
67	101
68	102
69	103
70	104
71	121