A272898 - cp's OEIS frontend

A272898 Numbers k such that 2^k has equal numbers of odd and even decimal digits.

n	a(n)
1	4
2	5
3	13
4	30
5	51
6	64
7	65
8	77
9	78
10	130
11	144
12	171
13	185
14	199
15	210
16	239
17	259
18	263
19	271
20	296
21	312
22	369
23	389
24	391
25	429
26	437
27	449
28	457
29	483
30	490
31	496
32	498
33	502
34	551
35	582
36	583
37	628
38	648
39	677
40	709
41	721
42	744
43	750
44	776
45	796
46	874
47	923
48	943

[4, 5, 13, 30, 51, 64, 65, 77, 78, 130, 144, 171, 185, 199, 210, 239, 259, 263, 271, 296, 312, 369, 389, 391, 429, 437, 449, 457, 483, 490, 496, 498, 502, 551, 582, 583, 628, 648, 677, 709, 721, 744, 750, 776, 796, 874, 923, 943]

cp's OEIS Frontend

A272898 Numbers k such that 2^k has equal numbers of odd and even decimal digits.

Table of values

List of values

n	a(n)
1	4
2	5
3	13
4	30
5	51
6	64
7	65
8	77
9	78
10	130
11	144
12	171
13	185
14	199
15	210
16	239
17	259
18	263
19	271
20	296
21	312
22	369
23	389
24	391
25	429
26	437
27	449
28	457
29	483
30	490
31	496
32	498
33	502
34	551
35	582
36	583
37	628
38	648
39	677
40	709
41	721
42	744
43	750
44	776
45	796
46	874
47	923
48	943

n	a(n)
1	4
2	5
3	13
4	30
5	51
6	64
7	65
8	77
9	78
10	130
11	144
12	171
13	185
14	199
15	210
16	239
17	259
18	263
19	271
20	296
21	312
22	369
23	389
24	391
25	429
26	437
27	449
28	457
29	483
30	490
31	496
32	498
33	502
34	551
35	582
36	583
37	628
38	648
39	677
40	709
41	721
42	744
43	750
44	776
45	796
46	874
47	923
48	943

n	a(n)
1	4
2	5
3	13
4	30
5	51
6	64
7	65
8	77
9	78
10	130
11	144
12	171
13	185
14	199
15	210
16	239
17	259
18	263
19	271
20	296
21	312
22	369
23	389
24	391
25	429
26	437
27	449
28	457
29	483
30	490
31	496
32	498
33	502
34	551
35	582
36	583
37	628
38	648
39	677
40	709
41	721
42	744
43	750
44	776
45	796
46	874
47	923
48	943