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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.

A376337 Numbers k such that phi(k)/2 + 1 = phi(k + 1) where phi = A000010.

Table of values

n	a(n)
1	3
2	7
3	9
4	31
5	127
6	8191
7	131071
8	524287

List of values

[3, 7, 9, 31, 127, 8191, 131071, 524287]

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

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