OFFSET
1,1
COMMENTS
a(74) > 10^18. - Hiroaki Yamanouchi, Aug 23 2018
LINKS
Hiroaki Yamanouchi, Table of n, a(n) for n = 1..73 (first 47 terms from Giovanni Resta)
FORMULA
{n: A033880(n) = 32}.
MATHEMATICA
Select[Range[10000000], DivisorSigma[1, #]-2#==32&] (* Harvey P. Dale, Dec 10 2010 *)
PROG
(PARI) is(n)=sigma(n)==2*n+32 \\ Charles R Greathouse IV, Feb 21 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
R. J. Mathar, Nov 04 2010
EXTENSIONS
Additional terms provided by Harvey P. Dale, Dec 10 2010
a(19)-a(29) from Donovan Johnson, Dec 08 2011
STATUS
approved