A053696 - cp's OEIS frontend

A053696 Numbers that can be represented as a string of three or more 1's in a base >= 2.

n	a(n)
1	7
2	13
3	15
4	21
5	31
6	40
7	43
8	57
9	63
10	73
11	85
12	91
13	111
14	121
15	127
16	133
17	156
18	157
19	183
20	211
21	241
22	255
23	259
24	273
25	307
26	341
27	343
28	364
29	381
30	400
31	421
32	463
33	507
34	511
35	553
36	585
37	601
38	651
39	703
40	757
41	781
42	813
43	820
44	871
45	931
46	993
47	1023
48	1057
49	1093
50	1111
51	1123
52	1191

[7, 13, 15, 21, 31, 40, 43, 57, 63, 73, 85, 91, 111, 121, 127, 133, 156, 157, 183, 211, 241, 255, 259, 273, 307, 341, 343, 364, 381, 400, 421, 463, 507, 511, 553, 585, 601, 651, 703, 757, 781, 813, 820, 871, 931, 993, 1023, 1057, 1093, 1111, 1123, 1191]

cp's OEIS Frontend

A053696 Numbers that can be represented as a string of three or more 1's in a base >= 2.

Table of values

List of values