1798275domain: NAppears in sequencesTriangle, read by rows, equal to the matrix square of A113381. Also given by: Q^2 = R*P = R*Q*(R^-2)*Q*R = P*Q*(P^-2)*Q*P, using triangular matrices P=A113370, Q=A113381 and R=A113389.at n=22A113384Column 1 of triangle A113384, also equals column 0 of A113381^5.at n=5A113386