188802141domain: NAppears in sequencesTriangle R, read by rows, such that R^3 transforms column k of R^3 into column k+1 of R^3, so that column k of R^3 equals column 0 of R^(3*k+3), where R^3 denotes the matrix cube of R.at n=38A113389Column 2 of triangle A113389, also equals column 0 of A113370^9.at n=6A113391