5566728domain: NAppears in sequencesTriangle T, read by rows, where column k of T = column 0 of T^(k+1) for k>0, with column 0 of T = column 0 of T^4 shift right.at n=47A138271Column 2 of triangle A138271; also, column 0 of matrix power A138271^3.at n=7A138274