id:A089992 - OEIS Search Results

Search: id:A089992

Displaying 1-1 of 1 results found.

page 1

Second prime divisor of n if it exists.

+0
1

3, 5, 3, 7, 5, 3, 5, 7, 11, 3, 13, 7, 3, 11, 17, 7, 3, 19, 13, 5, 3, 11, 5, 23, 3, 5, 17, 13, 3, 11, 7, 19, 29, 3, 31, 7, 13, 3, 17, 23, 5, 3, 37, 5, 19, 11, 3, 5, 41, 3, 17, 43, 29, 11, 3, 13, 23, 31, 47, 19, 3, 7, 11, 5, 3, 13, 5, 53, 3, 5, 37, 7, 3, 23, 29, 13, 59, 17, 3, 61, 41, 31, 3, 43 (list; graph; listen)

	OFFSET	`2,1`
	PROGRAM	`(PARI) f(n) = a=factor(n); v=a[, 1]; ln=length(v); if(ln>1, return(v[2])) g(m) = for(x=2, m, if(f(x)>0, print1(f(x)", ")))`
	CROSSREFS	`Sequence in context: A029604 A079602 A075572 this_sequence A074593 A144294 A154800` `Adjacent sequences: A089989 A089990 A089991 this_sequence A089993 A089994 A089995`
	KEYWORD	`nonn`
	AUTHOR	`Cino Hilliard (hillcino368(AT)gmail.com), Jan 14 2004`

page 1

Search completed in 0.002 seconds

Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research