A259086 - cp's OEIS frontend

A259086 a(n) = largest k such that the decimal representation of prime(n)^k does not contain the digit 2.

n	a(n)
1	168
2	59
3	1
4	28
5	38
6	25
7	16
8	22
9	28
10	20
11	22
12	7
13	19
14	20
15	4
16	10
17	27
18	11
19	8
20	13
21	13
22	12
23	5
24	23
25	23
26	18
27	42
28	7
29	31
30	4
31	10
32	13
33	11
34	5
35	11
36	11
37	8
38	12
39	12
40	9
41	7
42	10
43	10
44	4
45	7
46	10
47	3
48	18
49	7
50	0
51	8
52	3
53	6
54	2
55	8
56	4
57	12
58	5
59	4
60	5
61	6
62	4
63	8
64	16
65	2
66	3
67	5
68	2
69	7
70	11
71	12
72	1
73	5
74	9

[168, 59, 1, 28, 38, 25, 16, 22, 28, 20, 22, 7, 19, 20, 4, 10, 27, 11, 8, 13, 13, 12, 5, 23, 23, 18, 42, 7, 31, 4, 10, 13, 11, 5, 11, 11, 8, 12, 12, 9, 7, 10, 10, 4, 7, 10, 3, 18, 7, 0, 8, 3, 6, 2, 8, 4, 12, 5, 4, 5, 6, 4, 8, 16, 2, 3, 5, 2, 7, 11, 12, 1, 5, 9]

cp's OEIS Frontend

A259086 a(n) = largest k such that the decimal representation of prime(n)^k does not contain the digit 2.

Table of values

List of values

n	a(n)
1	168
2	59
3	1
4	28
5	38
6	25
7	16
8	22
9	28
10	20
11	22
12	7
13	19
14	20
15	4
16	10
17	27
18	11
19	8
20	13
21	13
22	12
23	5
24	23
25	23
26	18
27	42
28	7
29	31
30	4
31	10
32	13
33	11
34	5
35	11
36	11
37	8
38	12
39	12
40	9
41	7
42	10
43	10
44	4
45	7
46	10
47	3
48	18
49	7
50	0
51	8
52	3
53	6
54	2
55	8
56	4
57	12
58	5
59	4
60	5
61	6
62	4
63	8
64	16
65	2
66	3
67	5
68	2
69	7
70	11
71	12
72	1
73	5
74	9

n	a(n)
1	168
2	59
3	1
4	28
5	38
6	25
7	16
8	22
9	28
10	20
11	22
12	7
13	19
14	20
15	4
16	10
17	27
18	11
19	8
20	13
21	13
22	12
23	5
24	23
25	23
26	18
27	42
28	7
29	31
30	4
31	10
32	13
33	11
34	5
35	11
36	11
37	8
38	12
39	12
40	9
41	7
42	10
43	10
44	4
45	7
46	10
47	3
48	18
49	7
50	0
51	8
52	3
53	6
54	2
55	8
56	4
57	12
58	5
59	4
60	5
61	6
62	4
63	8
64	16
65	2
66	3
67	5
68	2
69	7
70	11
71	12
72	1
73	5
74	9

n	a(n)
1	168
2	59
3	1
4	28
5	38
6	25
7	16
8	22
9	28
10	20
11	22
12	7
13	19
14	20
15	4
16	10
17	27
18	11
19	8
20	13
21	13
22	12
23	5
24	23
25	23
26	18
27	42
28	7
29	31
30	4
31	10
32	13
33	11
34	5
35	11
36	11
37	8
38	12
39	12
40	9
41	7
42	10
43	10
44	4
45	7
46	10
47	3
48	18
49	7
50	0
51	8
52	3
53	6
54	2
55	8
56	4
57	12
58	5
59	4
60	5
61	6
62	4
63	8
64	16
65	2
66	3
67	5
68	2
69	7
70	11
71	12
72	1
73	5
74	9