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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.

A132931 Concatenation of first n Mersenne primes.

Table of values

n a(n)
1 3
2 37
3 3731
4 3731127
5 37311278191
6 37311278191131071
7 37311278191131071524287
8 373112781911310715242872147483647
9 3731127819113107152428721474836472305843009213693951

List of values

[3, 37, 3731, 3731127, 37311278191, 37311278191131071, 37311278191131071524287, 373112781911310715242872147483647, 3731127819113107152428721474836472305843009213693951]

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

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