A163249 - OEIS

This site is supported by donations to The OEIS Foundation.

A163249

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

2, 5, 8, 11, 15, 17, 22, 25, 29, 35, 38, 45, 49, 51, 56, 62, 68, 70, 76, 81, 84, 90, 94, 100, 108, 113, 115, 119, 122, 127, 141, 145, 152, 154, 164, 166, 172, 179, 183, 189, 195, 197, 208, 211, 215, 217, 229, 241, 246, 248 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`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: A118518 A190079 A184872 * A190364 A088366 A186228` `Adjacent sequences: A163246 A163247 A163248 * A163250 A163251 A163252`
	KEYWORD	`nonn,uned`
	AUTHOR	`Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Jul 23 2009`

Content is available under The OEIS End-User License Agreement .

Last modified February 14 17:34 EST 2012. Contains 205644 sequences.