A156993 - cp's OEIS frontend

A156993 a(n) = the least positive k such that n^2 and (n+k)^2 have no common digits, or 0 if no such k exists.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	6
10	5
11	9
12	3
13	2
14	1
15	4
16	4
17	2
18	6
19	1
20	3
21	2
22	1
23	3
24	5
25	3
26	3
27	2
28	2
29	1
30	4
31	14
32	31
33	25
34	13
35	23
36	26
37	8
38	7
39	19
40	17
41	4
42	3
43	2
44	1
45	11
46	16
47	9
48	28
49	14
50	6
51	11
52	4
53	3
54	8
55	12
56	9
57	19
58	19
59	16
60	5
61	3
62	13
63	2
64	21
65	18
66	23
67	8
68	22
69	4
70	5
71	12
72	14
73	5
74	16
75	13
76	14
77	1
78	7
79	118
80	5
81	7
82	8
83	2
84	7
85	5
86	4
87	3
88	2
89	3
90	66

[1, 1, 1, 1, 1, 1, 1, 2, 1, 6, 5, 9, 3, 2, 1, 4, 4, 2, 6, 1, 3, 2, 1, 3, 5, 3, 3, 2, 2, 1, 4, 14, 31, 25, 13, 23, 26, 8, 7, 19, 17, 4, 3, 2, 1, 11, 16, 9, 28, 14, 6, 11, 4, 3, 8, 12, 9, 19, 19, 16, 5, 3, 13, 2, 21, 18, 23, 8, 22, 4, 5, 12, 14, 5, 16, 13, 14, 1, 7, 118, 5, 7, 8, 2, 7, 5, 4, 3, 2, 3, 66]

cp's OEIS Frontend

A156993 a(n) = the least positive k such that n^2 and (n+k)^2 have no common digits, or 0 if no such k exists.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	6
10	5
11	9
12	3
13	2
14	1
15	4
16	4
17	2
18	6
19	1
20	3
21	2
22	1
23	3
24	5
25	3
26	3
27	2
28	2
29	1
30	4
31	14
32	31
33	25
34	13
35	23
36	26
37	8
38	7
39	19
40	17
41	4
42	3
43	2
44	1
45	11
46	16
47	9
48	28
49	14
50	6
51	11
52	4
53	3
54	8
55	12
56	9
57	19
58	19
59	16
60	5
61	3
62	13
63	2
64	21
65	18
66	23
67	8
68	22
69	4
70	5
71	12
72	14
73	5
74	16
75	13
76	14
77	1
78	7
79	118
80	5
81	7
82	8
83	2
84	7
85	5
86	4
87	3
88	2
89	3
90	66

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	6
10	5
11	9
12	3
13	2
14	1
15	4
16	4
17	2
18	6
19	1
20	3
21	2
22	1
23	3
24	5
25	3
26	3
27	2
28	2
29	1
30	4
31	14
32	31
33	25
34	13
35	23
36	26
37	8
38	7
39	19
40	17
41	4
42	3
43	2
44	1
45	11
46	16
47	9
48	28
49	14
50	6
51	11
52	4
53	3
54	8
55	12
56	9
57	19
58	19
59	16
60	5
61	3
62	13
63	2
64	21
65	18
66	23
67	8
68	22
69	4
70	5
71	12
72	14
73	5
74	16
75	13
76	14
77	1
78	7
79	118
80	5
81	7
82	8
83	2
84	7
85	5
86	4
87	3
88	2
89	3
90	66

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	6
10	5
11	9
12	3
13	2
14	1
15	4
16	4
17	2
18	6
19	1
20	3
21	2
22	1
23	3
24	5
25	3
26	3
27	2
28	2
29	1
30	4
31	14
32	31
33	25
34	13
35	23
36	26
37	8
38	7
39	19
40	17
41	4
42	3
43	2
44	1
45	11
46	16
47	9
48	28
49	14
50	6
51	11
52	4
53	3
54	8
55	12
56	9
57	19
58	19
59	16
60	5
61	3
62	13
63	2
64	21
65	18
66	23
67	8
68	22
69	4
70	5
71	12
72	14
73	5
74	16
75	13
76	14
77	1
78	7
79	118
80	5
81	7
82	8
83	2
84	7
85	5
86	4
87	3
88	2
89	3
90	66