id:A132106 - OEIS Search Results

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1 + floor(sqrt(n)) + Sum_{i=1..n} floor(n/i).

+0
19

1, 3, 5, 7, 11, 13, 17, 19, 23, 27, 31, 33, 39, 41, 45, 49, 55, 57, 63, 65, 71, 75, 79, 81, 89, 93, 97, 101, 107, 109, 117, 119, 125, 129, 133, 137, 147, 149, 153, 157, 165, 167, 175, 177, 183, 189, 193, 195, 205, 209, 215, 219, 225, 227, 235, 239, 247, 251, 255, 257, 269 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Matches first 8 odd primes.`
	CROSSREFS	`Sequence in context: A109860 A100392 A067019 this_sequence A093893 A056912 A075763` `Adjacent sequences: A132103 A132104 A132105 this_sequence A132107 A132108 A132109`
	KEYWORD	`nonn`
	AUTHOR	`Richard Schroeppel, Oct 31 2007`

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

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