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.

A258411 Nonnegative integers n such that in bijective base-2 numeration the number of occurrences of each digit doubles when n is squared.

Table of values

n a(n)
1 5
2 9
3 17
4 33
5 41
6 42
7 65
8 74
9 77
10 84
11 85
12 90
13 129
14 138
15 145
16 146
17 148
18 162
19 166
20 168
21 173
22 180
23 257
24 266
25 274
26 276
27 279
28 282
29 285
30 292
31 296
32 297
33 301
34 307
35 310
36 322
37 324
38 330
39 332
40 336
41 341
42 345
43 349
44 354
45 360
46 513
47 522
48 530
49 532
50 538
51 545
52 546
53 548
54 552
55 562

List of values

[5, 9, 17, 33, 41, 42, 65, 74, 77, 84, 85, 90, 129, 138, 145, 146, 148, 162, 166, 168, 173, 180, 257, 266, 274, 276, 279, 282, 285, 292, 296, 297, 301, 307, 310, 322, 324, 330, 332, 336, 341, 345, 349, 354, 360, 513, 522, 530, 532, 538, 545, 546, 548, 552, 562]

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

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