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A125115 Differences between consecutive abundant numbers. 1
6, 2, 4, 6, 6, 4, 2, 6, 6, 2, 4, 6, 4, 2, 6, 2, 4, 4, 2, 6, 4, 2, 2, 4, 4, 2, 6, 6, 6 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

a(1)=6 because 18-12=6; a(4)=6 because 30-24=6

MATHEMATICA

#[[2]]-#[[1]]&/@Partition[Select[Range[300], DivisorSigma[1, # ]>2#&], 2, 1] - Harvey P. Dale (hpd1(AT)nyu.edu), Dec 02 2006

CROSSREFS

Cf. A005101.

Sequence in context: A010493 A175286 A061496 * A202244 A020831 A156590

Adjacent sequences:  A125112 A125113 A125114 * A125116 A125117 A125118

KEYWORD

easy,nonn

AUTHOR

Jason G. Wurtzel (j_seq(AT)wurtzel.com), Nov 21 2006

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Last modified February 16 10:50 EST 2012. Contains 205904 sequences.