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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.

A090630 Greatest divisor d of n! such that d=m^k with k>1.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 8
5 8
6 144
7 144
8 576
9 5184
10 518400
11 518400
12 2073600
13 2073600
14 101606400
15 914457600
16 14631321600
17 14631321600
18 526727577600
19 526727577600
20 52672757760000
21 221225582592000
22 6373403688960000
23 6373403688960000
24 917770131210240000
25 22944253280256000000
26 3877578804363264000000

List of values

[1, 1, 1, 1, 8, 8, 144, 144, 576, 5184, 518400, 518400, 2073600, 2073600, 101606400, 914457600, 14631321600, 14631321600, 526727577600, 526727577600, 52672757760000, 221225582592000, 6373403688960000, 6373403688960000, 917770131210240000, 22944253280256000000, 3877578804363264000000]

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

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