1215450domain: NAppears in sequencesBinomial coefficient C(5n,n-11).at n=4A004353Binomial coefficients C(n,71).at n=4A017735Binomial coefficients C(75,n).at n=4A017791Triangle, read by rows, where T(n,k) = C( C(n+2,3) - C(k+2,3) + 1, n-k) for n>=k>=0.at n=31A126450