id:A163249 - OEIS Search Results

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Sum of n-th prime (A000040(n)) and number of numbers from this set less than n-th nonprime number (A018252(n)).

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	OFFSET	`1,1`
	COMMENT	`a(n) = Sum of n-th nonprime number (A018252(n)) and number of numbers from this set less than n-th prime (A000040(n)).`
	FORMULA	`a(n) = A000040(n) + A073425 (n-1) = A018252(n) + A014689(n) = A000040(n) + A018252(n)- A000027(n) = A000040(n) + A002808(n) - n.`
	CROSSREFS	`Sequence in context: A102795 A162938 A118518 this_sequence A088366 A130258 A032765` `Adjacent sequences: A163246 A163247 A163248 this_sequence A163250 A163251 A163252`
	KEYWORD	`nonn,uned`
	AUTHOR	`Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Jul 23 2009`

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

AT&T Labs Research