OFFSET
0,3
COMMENTS
The product of the odd primes between n+1 and 2n. inclusive. - T. D. Noe, Jan 24 2007
LINKS
T. D. Noe, Table of n, a(n) for n=0..250
FORMULA
J0(i*sqrt(y))^2=sum(n>=0, (2n)!/(n!)^4/2^(2n)*y^n)
CROSSREFS
KEYWORD
easy,frac,nonn
AUTHOR
Benoit Cloitre, Mar 21 2002
STATUS
approved