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.

A075469 Maximal m such that n^n-m and n^n+m are both primes, or -1 if there is no such m.

Table of values

n a(n)
2 1
3 20
4 253
5 3122
6 46651
7 823540
8 16777155
9 387420478
10 9999999939
11 285311670528
12 8916100448227
13 302875106592216
14 11112006825558003
15 437893890380859368
16 18446744073709551537
17 827240261886336764070
18 39346408075296537575383

List of values

[1, 20, 253, 3122, 46651, 823540, 16777155, 387420478, 9999999939, 285311670528, 8916100448227, 302875106592216, 11112006825558003, 437893890380859368, 18446744073709551537, 827240261886336764070, 39346408075296537575383]

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

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