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A070318 Max( sigma(k)-k : k=1,2,3,...,n ) where sigma(x)-x is the sum of proper divisors of x. 3
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; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..69.

FORMULA

lim n -> infinity (1/n^2)*sum(i=1, n, a(i))=C=0, 7...

CROSSREFS

Sequence in context: A127739 A327142 A175394 * A257537 A219883 A219381

Adjacent sequences:  A070315 A070316 A070317 * A070319 A070320 A070321

KEYWORD

easy,nonn

AUTHOR

Benoit Cloitre, May 11 2002

STATUS

approved

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Last modified October 16 05:41 EDT 2021. Contains 348035 sequences. (Running on oeis4.)