id:A082460 - OEIS Search Results

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a(n) = pi[n] - a(n - 1) = A000720[n] - a(n - 1).

+0
1

0, 1, 1, 1, 2, 1, 3, 1, 3, 1, 4, 1, 5, 1, 5, 1, 6, 1, 7, 1, 7, 1, 8, 1, 8, 1, 8, 1, 9, 1, 10, 1, 10, 1, 10, 1, 11, 1, 11, 1, 12, 1, 13, 1, 13, 1, 14, 1, 14, 1, 14, 1, 15, 1, 15, 1, 15, 1, 16, 1, 17, 1, 17, 1, 17, 1, 18, 1, 18, 1, 19, 1, 20, 1, 20, 1, 20, 1, 21, 1, 21, 1, 22, 1, 22, 1, 22, 1, 23, 1 (list; graph; listen)

	OFFSET	`0,5`
	MAPLE	`f[x_] := PrimePi[x]-f[x-1] f[0]=0; Table[f[w], {w, 1, 128}]`
	CROSSREFS	`Cf. A000720.` `Sequence in context: A049994 A135732 A084360 this_sequence A029227 A029214 A134460` `Adjacent sequences: A082457 A082458 A082459 this_sequence A082461 A082462 A082463`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Apr 26 2003`

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Last modified December 5 17:24 EST 2009. Contains 170342 sequences.

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