OFFSET
1,1
REFERENCES
David Wells, The Penguin Dictionary of Curious and Interesting Numbers, Penguin Books, p. 103.
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..3000
MATHEMATICA
SequencePosition[DivisorSigma[0, Range[1600]], {6, 6}]//Flatten//Union (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Aug 23 2017 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from Olivier Gérard
STATUS
approved