id:A111087 - OEIS Search Results

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Neither primes nor semiprimes.

+0
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1, 8, 12, 16, 18, 20, 24, 27, 28, 30, 32, 36, 40, 42, 44, 45, 48, 50, 52, 54, 56, 60, 63, 64, 66, 68, 70, 72, 75, 76, 78, 80, 81, 84, 88, 90, 92, 96, 98, 99, 100, 102, 104, 105, 108, 110, 112, 114, 116, 117, 120, 124, 125, 126, 128, 130, 132, 135, 136, 138, 140, 144 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`1 together with A033942.`
	MATHEMATICA	`f[n_] := Plus @@ Last /@ FactorInteger[n]; Select[ Range[146], f[ # ] != 1 && f[ # ] != 2 &] (* Robert G. Wilson v *)`
	CROSSREFS	`Sequence in context: A160258 A071280 A033942 this_sequence A166083 A091375 A083348` `Adjacent sequences: A111084 A111085 A111086 this_sequence A111088 A111089 A111090`
	KEYWORD	`easy,nonn`
	AUTHOR	`Noelle Clou (keynews.tv(AT)skynet.be), Oct 12 2005`
	EXTENSIONS	`More terms from Robert G. Wilson v (rgwv(at)rgwv.com), Oct 12 2005`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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