A188529 - cp's OEIS frontend

A188529 Numbers which contain only the digit 3 in their base-4 representation, with at most one exception. If the exception is the most-significant digit, it must be the digit 1 or 2, otherwise the exception must be the digit 2.

n	a(n)
1	1
2	2
3	3
4	7
5	11
6	14
7	15
8	31
9	47
10	59
11	62
12	63
13	127
14	191
15	239
16	251
17	254
18	255
19	511
20	767
21	959
22	1007
23	1019
24	1022
25	1023
26	2047
27	3071
28	3839
29	4031
30	4079
31	4091
32	4094
33	4095
34	8191
35	12287
36	15359
37	16127
38	16319
39	16367
40	16379
41	16382
42	16383
43	32767
44	49151
45	61439
46	64511
47	65279
48	65471
49	65519

[1, 2, 3, 7, 11, 14, 15, 31, 47, 59, 62, 63, 127, 191, 239, 251, 254, 255, 511, 767, 959, 1007, 1019, 1022, 1023, 2047, 3071, 3839, 4031, 4079, 4091, 4094, 4095, 8191, 12287, 15359, 16127, 16319, 16367, 16379, 16382, 16383, 32767, 49151, 61439, 64511, 65279, 65471, 65519]

cp's OEIS Frontend

A188529 Numbers which contain only the digit 3 in their base-4 representation, with at most one exception. If the exception is the most-significant digit, it must be the digit 1 or 2, otherwise the exception must be the digit 2.

Table of values

List of values