id:A070318 - OEIS Search Results

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Max( sigma(k)-k : k=1,2,3,...,n ) where sigma(x)-x is the sum of proper divisors of x.

+0
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0, 1, 1, 3, 3, 6, 6, 7, 7, 8, 8, 16, 16, 16, 16, 16, 16, 21, 21, 22, 22, 22, 22, 36, 36, 36, 36, 36, 36, 42, 42, 42, 42, 42, 42, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 108, 108, 108, 108, 108, 108, 108, 108, 108, 108 (list; graph; listen)

	OFFSET	`1,4`
	FORMULA	`lim n -> infinity (1/n^2)*sum(i=1, n, a(i))=C=0, 7...`
	CROSSREFS	`Sequence in context: A160745 A105676 A127739 this_sequence A023842 A165885 A061795` `Adjacent sequences: A070315 A070316 A070317 this_sequence A070319 A070320 A070321`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), May 11 2002`

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

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