id:A084126 - OEIS Search Results

Search: id:A084126

Displaying 1-1 of 1 results found.

page 1

Prime factor <= other prime factor of n-th semiprime.

+0
12

2, 2, 3, 2, 2, 3, 3, 2, 5, 2, 3, 2, 5, 2, 3, 2, 7, 3, 5, 3, 2, 2, 5, 3, 2, 7, 2, 5, 2, 3, 7, 3, 2, 5, 2, 3, 5, 2, 7, 11, 2, 3, 3, 7, 2, 3, 2, 11, 5, 2, 5, 2, 3, 7, 2, 13, 3, 2, 3, 5, 11, 2, 3, 2, 7, 5, 2, 11, 3, 2, 5, 7, 2, 3, 13, 2, 5, 3, 13, 3, 11, 2, 7, 2, 5, 3, 2, 2, 7, 17, 3, 5, 2, 13, 7, 2, 3, 5, 3, 2 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n)=A020639(A001358(n))=n/A006530(A001358(n)); A001358(n)=a(n)*A084127(n).`
	LINKS	`Zak Seidov, Table of n, a(n) for n = 1..1000` `Eric Weisstein's World of Mathematics, Semiprime`
	CROSSREFS	`Cf. A068318, A087718, A087794, A089994, A089995, A096916, A106550, A106554, A108541, A131284, A138510, A138511.` `Adjacent sequences: A084123 A084124 A084125 this_sequence A084127 A084128 A084129` `Sequence in context: A001918 A002233 A074595 this_sequence A135975 A136032 A140361`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 15 2003`

page 1

Search completed in 0.002 seconds

Last modified November 21 00:02 EST 2008. Contains 150810 sequences.

AT&T Labs Research