OFFSET
0,5
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..1000
MATHEMATICA
DivisorSigma[0, CatalanNumber@Range[0, 1000]] - 1 (* G. C. Greubel, Aug 28 2016 *)
PROG
(PARI) a(n)=numdiv(binomial(2*n, n)/(n+1)) - 1 \\ Charles R Greathouse IV, Aug 29 2016
CROSSREFS
KEYWORD
nonn
AUTHOR
Omar E. Pol, Jan 18 2009
STATUS
approved