id:A090379 - OEIS Search Results

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

+0
1

1, 1, 0, 0, 1, 0, 2, 1, 1, 1, 3, 1, 4, 2, 2, 2, 5, 2, 6, 3, 3, 3, 7, 3, 3, 3, 3, 3, 8, 4, 9, 4, 4, 4, 4, 4, 10, 5, 5, 5, 11, 5, 12, 6, 6, 6, 13, 6, 6, 6, 6, 6, 14, 7, 7, 7, 7, 7, 15, 7, 16, 8, 8, 8, 8, 8, 17, 8, 8, 8, 18, 9, 19, 9, 9, 9, 9, 9, 20, 10, 10, 10, 21, 10, 10, 10, 10, 10, 22, 11, 11, 11 (list; graph; listen)

	OFFSET	`1,7`
	COMMENT	`A chaotic function based on the distribution of primes and the information in the composite numbers.`
	MATHEMATICA	`f[n_] := Abs[Floor[(PrimePi[n] - 2)/(2 - PrimePi[n] + PrimePi[n - 1])]]; Table[ f[n], {n, 1, 92}]`
	CROSSREFS	`Sequence in context: A060247 A060246 A123541 this_sequence A077254 A074761 A037861` `Adjacent sequences: A090376 A090377 A090378 this_sequence A090380 A090381 A090382`
	KEYWORD	`nonn`
	AUTHOR	`Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Jan 29 2004`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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