133784560domain: NAppears in sequencesBinomial coefficient C(4n,n-6).at n=7A004336a(n) = binomial coefficient C(n,45).at n=7A010998Binomial coefficients C(52,n).at n=7A017768Binomial coefficients C(2*n-6,7).at n=22A053129Numbers whose square is the product of two distinct tetrahedral numbers A000292.at n=11A152005