id:A000879 - OEIS Search Results

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Number of primes < square of n-th prime.

+0
11

2, 4, 9, 15, 30, 39, 61, 72, 99, 146, 162, 219, 263, 283, 329, 409, 487, 519, 609, 675, 705, 811, 886, 1000, 1163, 1252, 1294, 1381, 1423, 1523, 1877, 1976, 2141, 2190, 2489, 2547, 2729, 2915, 3043, 3241, 3436, 3512, 3868, 3945, 4089, 4164, 4627, 5106 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n) = Min{x : A052180[x] = p(n) = A000040(n)}. E.g. n = 4: a(4) = 15 since p(4) = 7 occurs first in A052180 as the term with subscript 15, A052180(15) = A052180(A083270[4]) = A000040(4) = 7. - Labos E. (labos(AT)ana.sote.hu), May 14 2003`
	CROSSREFS	`A050216 gives first difference. Cf. A089609.` `Cf. A052180, A000720.` `Sequence in context: A060737 A085683 A083270 this_sequence A014290 A015730 A073858` `Adjacent sequences: A000876 A000877 A000878 this_sequence A000880 A000881 A000882`
	KEYWORD	`nonn`
	AUTHOR	`gandalf(AT)hrn.office.ssi.net (James D. Ausfahl)`
	EXTENSIONS	`Edited by R. Stephan, Aug 24 2004`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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