92385domain: NAppears in sequencesNumbers whose square can be expressed as a+b*c, with a,b,c in geometric sequence.at n=15A130733Number of (w,x,y,z) with all terms in {1,...,n} and 2*w*x>=3*y*z.at n=22A211923a(n) = Sum_{i=0..n} C(n,i)*C(2i,i)^2.at n=5A248586