id:A061535 - OEIS Search Results

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a(n) = a(n-1) + the number of primes <= a(n-1).

+0
1

2, 3, 5, 8, 12, 17, 24, 33, 44, 58, 74, 95, 119, 149, 184, 226, 274, 332, 399, 477, 568, 671, 792, 930, 1088, 1269, 1474, 1707, 1973, 2271, 2608, 2986, 3415, 3895, 4434, 5036, 5710, 6461, 7299, 8229, 9260, 10407, 11681, 13083, 14639, 16354, 18250 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..300`
	MATHEMATICA	`a[1] = 2; a[n_] := a[n] = a[n - 1] + PrimePi[ a[n - 1] ]; Table[ a[n], {n, 1, 75} ]`
	CROSSREFS	`Sequence in context: A104664 A022856 A089071 this_sequence A129504 A024789 A111388` `Adjacent sequences: A061532 A061533 A061534 this_sequence A061536 A061537 A061538`
	KEYWORD	`nonn`
	AUTHOR	`R. K. Guy, Robert G. Wilson v (rgwv(AT)rgwv.com), May 14 2001`

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Last modified December 2 15:58 EST 2008. Contains 150992 sequences.

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