id:A087794 - OEIS Search Results

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Products of prime-indices of factors of semiprimes.

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	OFFSET	`1,2`
	COMMENT	`a(n) = A049084(A084126(n))*A049084(A084127(n)) = A003963(A001358(n)).`
	EXAMPLE	`A001358(20)=57=319=A000040(2)A000040(8), therefore a(20)=2*8=16.`
	CROSSREFS	`Adjacent sequences: A087791 A087792 A087793 this_sequence A087795 A087796 A087797` `Sequence in context: A083172 A104148 A089169 this_sequence A050514 A133702 A080001`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 09 2003`

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.

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