id:A156899 - OEIS Search Results

Search: id:A156899

Displaying 1-1 of 1 results found.

page 1

a(n) = the largest prime power <= the nth positive squarefree integer.

+0
4

1, 2, 3, 5, 5, 7, 9, 11, 13, 13, 13, 17, 19, 19, 19, 23, 25, 29, 29, 31, 32, 32, 32, 37, 37, 37, 41, 41, 43, 43, 47, 49, 53, 53, 53, 53, 59, 61, 61, 64, 64, 67, 67, 67, 71, 73, 73, 73, 73, 79, 81, 83, 83, 83, 83, 89, 89, 89, 89, 89, 97, 101, 101, 103, 103, 103, 107, 109, 109 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`The first positive squarefree integer is considered to be 1 here.`
	CROSSREFS	`Cf. A081217, A156898, A156900, A005117, A000961.` `Sequence in context: A023838 A089625 A092391 this_sequence A156898 A084754 A120724` `Adjacent sequences: A156896 A156897 A156898 this_sequence A156900 A156901 A156902`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), Feb 17 2009`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jun 19 2009`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research