id:A109401 - OEIS Search Results

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Number of primes in the first n terms of A109400.

+0
2

0, 1, 1, 2, 3, 4, 4, 5, 6, 7, 8, 9, 9, 10, 11, 11, 12, 13, 14, 15, 15, 16, 17, 17, 18, 19, 20, 21, 22, 23, 23, 24, 25, 25, 26, 26, 27, 28, 29, 30, 31, 32, 32, 33, 34, 34, 35, 35, 36, 37, 38, 39, 40, 41, 42, 43, 43, 44, 45, 45, 46, 46, 47, 47, 48, 49, 50, 51 (list; graph; listen)

	OFFSET	`1,4`
	COMMENT	`a(n) = Sum(A010051(A109400(m)): 1<=m<=n).`
	CROSSREFS	`Cf. A000720.` `Sequence in context: A003004 A120507 A090223 this_sequence A056847 A105598 A083058` `Adjacent sequences: A109398 A109399 A109400 this_sequence A109402 A109403 A109404`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 27 2005`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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