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.

A137985 Complementing any single bit in the binary representation of these primes does not produce a prime number.

Table of values

n a(n)
1 127
2 173
3 191
4 223
5 233
6 239
7 251
8 257
9 277
10 337
11 349
12 373
13 431
14 443
15 491
16 509
17 557
18 653
19 683
20 701
21 733
22 761
23 787
24 853
25 877
26 1019
27 1193
28 1201
29 1259
30 1381
31 1451
32 1453
33 1553
34 1597
35 1709
36 1753
37 1759
38 1777
39 1973
40 2027
41 2063
42 2333
43 2371
44 2447
45 2633
46 2879
47 2917
48 2999

List of values

[127, 173, 191, 223, 233, 239, 251, 257, 277, 337, 349, 373, 431, 443, 491, 509, 557, 653, 683, 701, 733, 761, 787, 853, 877, 1019, 1193, 1201, 1259, 1381, 1451, 1453, 1553, 1597, 1709, 1753, 1759, 1777, 1973, 2027, 2063, 2333, 2371, 2447, 2633, 2879, 2917, 2999]

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

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