-7199domain: ZAppears in sequences(1,1) entry of powers of the orthogonal design shown below.at n=11A090592Row sums of triangle A113288.at n=9A113289a(n) = (-4*n^3 + 27*n^2 - 20*n + 3)/3.at n=20A161711a(n) = Sum_{k=0..n} (-n)^k * binomial(2*n,2*k).at n=6A333991