id:A072111 - OEIS Search Results

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Partial sum of Pi(k) from 1 to 2^n.

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1, 5, 19, 61, 203, 669, 2279, 7797, 27213, 96111, 343965, 1240617, 4513763, 16546859, 61027965, 226454967, 844181631, 3161518957, 11886015725, 44847272299, 169747439789, 644345294711, 2452231140853, 9354606971985 (list; graph; listen)

	OFFSET	`1,2`
	MATHEMATICA	`s = 0; k = 1; Do[ While [k <= 2^n, s = s + PrimePi[k]; k++ ]; Print[s], {n, 1, 28} ]`
	CROSSREFS	`Cf. A000720 & A073224.` `Sequence in context: A036637 A036644 A000342 this_sequence A141397 A143131 A036677` `Adjacent sequences: A072108 A072109 A072110 this_sequence A072112 A072113 A072114`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Jul 30 2002`

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

AT&T Labs Research