A111142 - OEIS

This site is supported by donations to The OEIS Foundation.

A111142

GCD(n,A113222(n)).

1, 1, 1, 1, 5, 3, 1, 1, 1, 2, 1, 1, 1, 14, 1, 1, 1, 1, 1, 4, 3, 2, 1, 1, 25, 26, 1, 4, 1, 2, 1, 1, 1, 34, 1, 1, 1, 2, 1, 2, 1, 2, 1, 4, 3, 46, 1, 1, 1, 2, 3, 4, 1, 3, 1, 2, 1, 2, 1, 10, 1, 2, 1, 1, 1, 2, 1, 4, 3, 1, 1, 1, 1, 74, 3, 4, 1, 2, 1, 16, 1, 2, 1, 6, 1, 86, 1, 22, 1, 10, 1, 4, 3, 94, 1, 1, 1, 2, 3 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,5`
	EXAMPLE	`12 = 2^2 * 3^1. So a(12) = GCD(12, F(2^2) + F(3^1)) = GCD(12, 5) = 1.`
	MATHEMATICA	`f[n_] := GCD[n, Plus @@ (Fibonacci[ #[[1]]^#[[2]]] & /@ FactorInteger[n])]; Table[ f[n], {n, 99}] (* Robert G. Wilson v *)`
	CROSSREFS	`Cf. A113222.` `Sequence in context: A126853 A201654 A132199 * A179626 A174965 A159671` `Adjacent sequences: A111139 A111140 A111141 * A111143 A111144 A111145`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet Oct 18 2005`
	EXTENSIONS	`More terms from Robert G. Wilson v (rgwv(at)rgwv.com), Oct 21 2005`

Content is available under The OEIS End-User License Agreement .

Last modified February 17 10:05 EST 2012. Contains 206009 sequences.