id:A090350 - OEIS Search Results

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a(n) = Floor[(n-PrimePi[n])/(2-PrimePi[n]+PrimePi[n-1])]

+0
1

0, 1, 1, 1, 2, 1, 3, 2, 2, 3, 6, 3, 7, 4, 4, 5, 10, 5, 11, 6, 6, 7, 14, 7, 8, 8, 9, 9, 19, 10, 20, 10, 11, 11, 12, 12, 25, 13, 13, 14, 28, 14, 29, 15, 15, 16, 32, 16, 17, 17, 18, 18, 37, 19, 19, 20, 20, 21, 42, 21, 43, 22, 22, 23, 23, 24, 48, 24, 25, 25, 51, 26, 52, 26, 27, 27, 28, 28 (list; graph; listen)

	OFFSET	`1,5`
	COMMENT	`Composite information as a projection with the Composite distribution.` `CompositeInformation[n]=1-PrimePi[n]+PrimePi[n-1]) set is from -> {0,1}`
	MATHEMATICA	`digits=200 f[n_]=Floor[(n-PrimePi[n])/(2-PrimePi[n]+PrimePi[n-1])] a=Table[f[n], {n, 1, digits}]`
	CROSSREFS	`Sequence in context: A122805 A103981 A029270 this_sequence A086415 A069013 A029281` `Adjacent sequences: A090347 A090348 A090349 this_sequence A090351 A090352 A090353`
	KEYWORD	`nonn`
	AUTHOR	`Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Jan 29 2004`

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

AT&T Labs Research