cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A217112 Greatest number (in decimal representation) with n nonprime substrings in binary representation (substrings with leading zeros are considered to be nonprime).

Table of values

n a(n)
1 1
2 3
3 7
4 6
5 15
6 14
7 31
8 29
9 30
10 63
11 61
12 62
13 127
14 54
15 125
16 126
17 255
18 117
19 251
20 254
21 189
22 511
23 479
24 509
25 510
26 379
27 502
28 1023
29 1021
30 1007
31 1022
32 958
33 1018
34 1014
35 2047
36 2045
37 1791
38 2046
39 2042
40 2027
41 2037
42 4091
43 4095
44 4063
45 3069
46 4094
47 4090
48 4085
49 8159
50 8187
51 8191
52 8189
53 8127

List of values

[1, 3, 7, 6, 15, 14, 31, 29, 30, 63, 61, 62, 127, 54, 125, 126, 255, 117, 251, 254, 189, 511, 479, 509, 510, 379, 502, 1023, 1021, 1007, 1022, 958, 1018, 1014, 2047, 2045, 1791, 2046, 2042, 2027, 2037, 4091, 4095, 4063, 3069, 4094, 4090, 4085, 8159, 8187, 8191, 8189, 8127]