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.

A141808 Numbers k such that the maximal prime power divisors of k form a nontrivial run of integers.

Table of values

n a(n)
1 6
2 12
3 20
4 56
5 60
6 72
7 272
8 504
9 992
10 16256
11 65792
12 67100672
13 4295032832
14 17179738112
15 274877382656
16 4611686016279904256
17 5316911983139663489309385231907684352
18 383123885216472214589586756168607276261994643096338432

List of values

[6, 12, 20, 56, 60, 72, 272, 504, 992, 16256, 65792, 67100672, 4295032832, 17179738112, 274877382656, 4611686016279904256, 5316911983139663489309385231907684352, 383123885216472214589586756168607276261994643096338432]

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

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