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.

A136005 Numbers of the form 2^p - 1, where p is a prime number that is not the sum, minus 1, of a Pythagorean triple.

Table of values

n a(n)
1 3
2 7
3 31
4 127
5 8191
6 131071
7 524287
8 2147483647
9 137438953471
10 2199023255551
11 8796093022207
12 9007199254740991
13 2305843009213693951
14 147573952589676412927
15 9444732965739290427391
16 158456325028528675187087900671
17 2535301200456458802993406410751

List of values

[3, 7, 31, 127, 8191, 131071, 524287, 2147483647, 137438953471, 2199023255551, 8796093022207, 9007199254740991, 2305843009213693951, 147573952589676412927, 9444732965739290427391, 158456325028528675187087900671, 2535301200456458802993406410751]

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

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