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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.

A101789 Safe primes of the form 8*k-1: primes of the form 8*k-1 such that 4*k-1 is also a prime.

Table of values

n a(n)
1 7
2 23
3 47
4 167
5 263
6 359
7 383
8 479
9 503
10 719
11 839
12 863
13 887
14 983
15 1319
16 1367
17 1439
18 1487
19 1823
20 2039
21 2063
22 2207
23 2447
24 2879
25 2903
26 2999
27 3023
28 3119
29 3167
30 3623
31 3863
32 4007
33 4079
34 4127
35 4679
36 4703
37 4799
38 4919
39 5087
40 5399
41 5639
42 5807
43 5879
44 5927
45 6047

List of values

[7, 23, 47, 167, 263, 359, 383, 479, 503, 719, 839, 863, 887, 983, 1319, 1367, 1439, 1487, 1823, 2039, 2063, 2207, 2447, 2879, 2903, 2999, 3023, 3119, 3167, 3623, 3863, 4007, 4079, 4127, 4679, 4703, 4799, 4919, 5087, 5399, 5639, 5807, 5879, 5927, 6047]

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

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