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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.

A138832 Concatenation of n-th Mersenne prime A000668(n) and n-th perfect number.

Table of values

n a(n)
1 36
2 728
3 31496
4 1278128
5 819133550336
6 1310718589869056
7 524287137438691328
8 21474836472305843008139952128
9 23058430092136939512658455991569831744654692615953842176

List of values

[36, 728, 31496, 1278128, 819133550336, 1310718589869056, 524287137438691328, 21474836472305843008139952128, 23058430092136939512658455991569831744654692615953842176]

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

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