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.

A178785 a(n) is the smallest n-perfect number of the form 2^(n+1)*L, where L is an odd number with exponents <= n in its prime power factorization, and a(n)=0 if no such n-perfect number exists.

Table of values

n a(n)
1 60
2 6552
3 222768
4 288288
5 87360
6 49585536
7 25486965504
8 203558400
9 683289600
10 556121548800

List of values

[60, 6552, 222768, 288288, 87360, 49585536, 25486965504, 203558400, 683289600, 556121548800]

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

Content is available under The OEIS End-User License Agreement.