A259091 - cp's OEIS frontend

A259091 Smallest k such that 2^k contains two adjacent copies of n in its decimal expansion.

n	a(n)
0	53
1	40
2	43
3	25
4	18
5	16
6	46
7	24
8	19
9	33
10	378
11	313
12	170
13	374
14	361
15	359
16	64
17	34
18	507
19	151
20	348
21	246
22	314
23	284
24	349
25	314
26	261
27	151
28	385
29	166
30	156
31	364
32	65
33	219
34	371
35	359
36	503
37	148
38	155
39	352
40	349
41	308
42	247
43	255
44	192
45	387
46	165
47	149
48	171
49	150
50	210
51	155
52	209
53	101
54	505

[53, 40, 43, 25, 18, 16, 46, 24, 19, 33, 378, 313, 170, 374, 361, 359, 64, 34, 507, 151, 348, 246, 314, 284, 349, 314, 261, 151, 385, 166, 156, 364, 65, 219, 371, 359, 503, 148, 155, 352, 349, 308, 247, 255, 192, 387, 165, 149, 171, 150, 210, 155, 209, 101, 505]

cp's OEIS Frontend

A259091 Smallest k such that 2^k contains two adjacent copies of n in its decimal expansion.

Table of values

List of values

n	a(n)
0	53
1	40
2	43
3	25
4	18
5	16
6	46
7	24
8	19
9	33
10	378
11	313
12	170
13	374
14	361
15	359
16	64
17	34
18	507
19	151
20	348
21	246
22	314
23	284
24	349
25	314
26	261
27	151
28	385
29	166
30	156
31	364
32	65
33	219
34	371
35	359
36	503
37	148
38	155
39	352
40	349
41	308
42	247
43	255
44	192
45	387
46	165
47	149
48	171
49	150
50	210
51	155
52	209
53	101
54	505

n	a(n)
0	53
1	40
2	43
3	25
4	18
5	16
6	46
7	24
8	19
9	33
10	378
11	313
12	170
13	374
14	361
15	359
16	64
17	34
18	507
19	151
20	348
21	246
22	314
23	284
24	349
25	314
26	261
27	151
28	385
29	166
30	156
31	364
32	65
33	219
34	371
35	359
36	503
37	148
38	155
39	352
40	349
41	308
42	247
43	255
44	192
45	387
46	165
47	149
48	171
49	150
50	210
51	155
52	209
53	101
54	505

n	a(n)
0	53
1	40
2	43
3	25
4	18
5	16
6	46
7	24
8	19
9	33
10	378
11	313
12	170
13	374
14	361
15	359
16	64
17	34
18	507
19	151
20	348
21	246
22	314
23	284
24	349
25	314
26	261
27	151
28	385
29	166
30	156
31	364
32	65
33	219
34	371
35	359
36	503
37	148
38	155
39	352
40	349
41	308
42	247
43	255
44	192
45	387
46	165
47	149
48	171
49	150
50	210
51	155
52	209
53	101
54	505