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.

A348421 Primes p == 3 (mod 4) such that (p+3)/2 is not prime.

Table of values

n a(n)
1 47
2 67
3 107
4 127
5 151
6 167
7 179
8 227
9 239
10 263
11 283
12 307
13 347
14 367
15 431
16 439
17 467
18 487
19 491
20 503
21 547
22 571
23 587
24 599
25 607
26 643
27 647
28 683
29 719
30 727
31 739
32 751
33 787
34 811
35 823
36 827
37 887
38 907
39 947
40 967
41 983
42 991
43 1019
44 1031
45 1051
46 1063
47 1087
48 1103
49 1163
50 1187

List of values

[47, 67, 107, 127, 151, 167, 179, 227, 239, 263, 283, 307, 347, 367, 431, 439, 467, 487, 491, 503, 547, 571, 587, 599, 607, 643, 647, 683, 719, 727, 739, 751, 787, 811, 823, 827, 887, 907, 947, 967, 983, 991, 1019, 1031, 1051, 1063, 1087, 1103, 1163, 1187]

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

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