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.

A047728 Intersection of A046985 and A033950: multiply perfect, refactorable numbers with integer average divisor dividing the number.

Table of values

n a(n)
1 1
2 672
3 30240
4 23569920
5 45532800
6 14182439040
7 153003540480
8 403031236608
9 13661860101120
10 154345556085770649600
11 143573364313605309726720
12 352338107624535891640320
13 680489641226538823680000
14 34384125938411324962897920
15 156036748944739017459105792
16 3638193973609385308194865152

List of values

[1, 672, 30240, 23569920, 45532800, 14182439040, 153003540480, 403031236608, 13661860101120, 154345556085770649600, 143573364313605309726720, 352338107624535891640320, 680489641226538823680000, 34384125938411324962897920, 156036748944739017459105792, 3638193973609385308194865152]

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

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