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.

A081504 Numbers n such that there are no primes of the form 2^n+2^i+1 for 0 In binary: all 3-bit numbers with size n+1 are composite.

Table of values

n a(n)
1 8
2 25
3 32
4 40
5 43
6 48
7 56
8 58
9 64
10 96
11 104
12 112
13 120
14 128
15 134
16 140
17 145
18 152
19 160
20 176
21 185
22 192
23 208
24 212
25 224
26 235
27 240
28 244
29 248
30 252
31 256
32 264
33 272
34 280
35 286
36 288
37 292
38 302
39 304
40 308
41 320
42 326
43 332
44 348
45 356
46 360
47 384
48 392
49 394
50 400
51 416
52 418
53 432
54 448

List of values

[8, 25, 32, 40, 43, 48, 56, 58, 64, 96, 104, 112, 120, 128, 134, 140, 145, 152, 160, 176, 185, 192, 208, 212, 224, 235, 240, 244, 248, 252, 256, 264, 272, 280, 286, 288, 292, 302, 304, 308, 320, 326, 332, 348, 356, 360, 384, 392, 394, 400, 416, 418, 432, 448]

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

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