id:A097456 - OEIS Search Results

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Integer part of the ratio (number of composites <=n) / (number of primes <=n).

+0
1

1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2 (list; graph; listen)

	OFFSET	`2,26`
	FORMULA	`pi(n) = number of primes <= n. Ratio = (n - pi(n))/pi(n) = n/pi(n) - 1. Output floor(Ratio)`
	PROGRAM	`(PARI) compsp1(n) = { for(x=2, n, y=floor(x/pi(x)-1); print1(y", ") ) }`
	CROSSREFS	`Sequence in context: A088569 A001285 A088424 this_sequence A164002 A087775 A089955` `Adjacent sequences: A097453 A097454 A097455 this_sequence A097457 A097458 A097459`
	KEYWORD	`nonn`
	AUTHOR	`Cino Hilliard (hillcino368(AT)gmail.com), Aug 23 2004`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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