id:A091880 - OEIS Search Results

Search: id:A091880

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A049232 indexed by A000040.

+0
2

1, 4, 9, 14, 15, 18, 21, 22, 25, 36, 39, 40, 48, 53, 59, 65, 67, 70, 72, 73, 74, 82, 85, 88, 99, 101, 110, 114, 122, 125, 127, 129, 130, 137, 143, 146, 147, 155, 158, 168, 174, 177, 180, 181, 188, 194, 198, 200, 202, 204, 213, 216, 219, 220, 224, 226, 229, 235 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n)=k such that A000040(k)=A049232(n).`
	MATHEMATICA	`(in Mathematica6)Select[Range[100], ! SquareFreeQ[Prime[ # ] + 2] &] [From Zak Seidov (zakseidov(AT)yahoo.com), Oct 28 2008]`
	CROSSREFS	`Sequence in context: A042083 A102776 A140343 this_sequence A141560 A071864 A050986` `Adjacent sequences: A091877 A091878 A091879 this_sequence A091881 A091882 A091883`
	KEYWORD	`easy,nonn`
	AUTHOR	`Ray Chandler (rayjchandler(AT)sbcglobal.net), Feb 15 2004`

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

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