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.

A217114 Greatest number (in decimal representation) with n nonprime substrings in base-4 representation (substrings with leading zeros are considered to be nonprime).

Table of values

n a(n)
0 11
1 59
2 239
3 251
4 751
5 1007
6 1019
7 3823
8 4079
9 4055
10 16111
11 16087
12 16319
13 16367
14 48991
15 64351
16 65263
17 65269
18 65471
19 253919
20 260959
21 261079
22 261847
23 261871
24 916319
25 1043839
26 1047391
27 1044463
28 1047511
29 3665279
30 3140991
31 4189567
32 4118519
33 4177759
34 4189565
35 4193239
36 14661117

List of values

[11, 59, 239, 251, 751, 1007, 1019, 3823, 4079, 4055, 16111, 16087, 16319, 16367, 48991, 64351, 65263, 65269, 65471, 253919, 260959, 261079, 261847, 261871, 916319, 1043839, 1047391, 1044463, 1047511, 3665279, 3140991, 4189567, 4118519, 4177759, 4189565, 4193239, 14661117]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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