id:A084227 - OEIS Search Results

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Numbers of the form p*q^k with distinct primes p and q, k>0.

+0
3

6, 10, 12, 14, 15, 18, 20, 21, 22, 24, 26, 28, 33, 34, 35, 38, 39, 40, 44, 45, 46, 48, 50, 51, 52, 54, 55, 56, 57, 58, 62, 63, 65, 68, 69, 74, 75, 76, 77, 80, 82, 85, 86, 87, 88, 91, 92, 93, 94, 95, 96, 98, 99, 104, 106, 111, 112, 115, 116, 117, 118, 119, 122, 123, 124, 129 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`A001221(a(n)) = 2; A001222(a(n)) = A051903(a(n)) + 1.`
	EXAMPLE	`80 = 5*2^4, therefore 80 is a term.`
	CROSSREFS	`Cf. A000961, A006881.` `Sequence in context: A007774 A030231 A056760 this_sequence A100658 A069059 A139587` `Adjacent sequences: A084224 A084225 A084226 this_sequence A084228 A084229 A084230`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), May 20 2003`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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