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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.

A281622 Numbers k such that sigma(k-1) is a Mersenne prime (A000668).

Table of values

n	a(n)
1	3
2	5
3	17
4	26
5	65
6	4097
7	65537
8	262145
9	1073741825

List of values

[3, 5, 17, 26, 65, 4097, 65537, 262145, 1073741825]

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

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