id:A122258 - OEIS Search Results

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Number of Pierpont primes <= n.

+0
3

0, 1, 2, 2, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`Partial sums of A122257;` `a(n) <= A000720(n); a(n) <= A071521(n).`
	LINKS	`Eric Weisstein's World of Mathematics, Pierpont Prime`
	CROSSREFS	`Sequence in context: A035486 A130249 A061071 this_sequence A068509 A070319 A057142` `Adjacent sequences: A122255 A122256 A122257 this_sequence A122259 A122260 A122261`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Aug 29 2006`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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