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A074748 Numbers for which the differences between consecutive anti-divisors (ordered by size) are not distinct. +0
1
15, 17, 20, 22, 28, 30 (list; graph; listen)
OFFSET

0,1

COMMENT

See A066272 for definition of anti-divisor.

EXAMPLE

For n=15, anti-divisors={2,6,10}; differences={4,4}, which are not distinct, so 15 is in the sequence.

CROSSREFS

Cf. A066272.

Sequence in context: A077033 A043669 A043704 this_sequence A155111 A124334 A002155

Adjacent sequences: A074745 A074746 A074747 this_sequence A074749 A074750 A074751

KEYWORD

more,nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Sep 06 2002

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


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