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.

A360903 a(n) is the least number that has exactly 2^n squarefree divisors and exactly 2^n powerful divisors.

Table of values

n a(n)
0 1
1 4
2 36
3 720
4 25200
5 1940400
6 227026800
7 42454011600
8 10486140865200
9 3858899838393600
10 1902437620328044800
11 1120535758373218387200
12 953575930375608847507200
13 977415328634999068694880000
14 1218836914807843838662515360000
15 1775845384875028472931284879520000

List of values

[1, 4, 36, 720, 25200, 1940400, 227026800, 42454011600, 10486140865200, 3858899838393600, 1902437620328044800, 1120535758373218387200, 953575930375608847507200, 977415328634999068694880000, 1218836914807843838662515360000, 1775845384875028472931284879520000]

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

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