id:A079065 - OEIS Search Results

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In prime factorization of n replace odd primes by 3.

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1, 2, 3, 4, 3, 6, 3, 8, 9, 6, 3, 12, 3, 6, 9, 16, 3, 18, 3, 12, 9, 6, 3, 24, 9, 6, 27, 12, 3, 18, 3, 32, 9, 6, 9, 36, 3, 6, 9, 24, 3, 18, 3, 12, 27, 6, 3, 48, 9, 18, 9, 12, 3, 54, 9, 24, 9, 6, 3, 36, 3, 6, 27, 64, 9, 18, 3, 12, 9, 18, 3, 72, 3, 6, 27, 12, 9, 18, 3, 48, 81, 6, 3, 36, 9, 6, 9, 24, 3 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n)<=n; a(n)=n iff n is 3-smooth (A003586); A065333(a(n))=1; a(a(n))=a(n); A001221(a(n))<=A001221(n); A001222(a(n))=A001222(n); A006519(a(n))=A006519(n).`
	FORMULA	`Multiplicative with p -> if p>2 then 3 else 2, p prime.`
	CROSSREFS	`Sequence in context: A086369 A092089 A117659 this_sequence A097272 A126630 A167234` `Adjacent sequences: A079062 A079063 A079064 this_sequence A079066 A079067 A079068`
	KEYWORD	`nonn,mult`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 02 2003`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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