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.

A181814 a(n)=smallest integer that, when divided by any integer from 1 to n, yields a member of A025487.

Original entry on oeis.org

1, 2, 12, 24, 720, 720, 151200, 302400, 1814400, 1814400, 4191264000, 4191264000, 125863657920000, 125863657920000, 125863657920000, 251727315840000, 128509312009478400000, 128509312009478400000, 1246500488605217541696000000
Offset: 1

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Author

Matthew Vandermast, Nov 30 2010

Keywords

Examples

			For integers k= 1 to 6, 720/k (720, 360, 240, 180, 144, 120) is always a member of A025487. 720 is the smallest integer with this property; therefore, a(6) = 720.
		

Crossrefs

All terms also belong to A181818.

Formula

If A003418(n) = Product p(i)^e(i), then a(n) = Product A002110(i)^e(i). I.e., a(n) = A108951(A003418(n)).
a(n) = A003418(n)*A181813(n).