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.

A161324 Let b(m,k) be the k-th binary digit (starting at k=1, reading right to left) in the base-2 representation of m. (So: n = Sum_{k>=0} b(k+1)*2^k.) A positive integer m is included in this sequence if and only if m = Product_{k>=1} k^b(m,k).

Table of values

n a(n)
1 1
2 2
3 6
4 12
5 576000

List of values

[1, 2, 6, 12, 576000]

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

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