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.

A160054 Primes prime(k) such that prime(k)^2 + prime(k+1)^2 - 1 is a perfect square.

Table of values

n a(n)
1 7
2 11
3 23
4 109
5 211
6 307
7 1021
8 4583
9 42967
10 297779
11 1022443
12 1459811
13 10781809
14 125211211
15 11673806759
16 3019843939831
17 40047392632801
18 88212019638251209
19 444190204424015227
20 57852556614292865039
21 9801250757169593701501
22 64747502900142088755541
23 619216322498658374863033

List of values

[7, 11, 23, 109, 211, 307, 1021, 4583, 42967, 297779, 1022443, 1459811, 10781809, 125211211, 11673806759, 3019843939831, 40047392632801, 88212019638251209, 444190204424015227, 57852556614292865039, 9801250757169593701501, 64747502900142088755541, 619216322498658374863033]

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

Content is available under The OEIS End-User License Agreement.