OFFSET
1,3
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..212
FORMULA
MATHEMATICA
a[n_] := PrimeNu[Binomial[2*n, n] + 1]; Array[a, 90] (* Amiram Eldar, Apr 23 2022 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Feb 23 2002
STATUS
approved