46975domain: NAppears in sequencesNumbers m such that sigma(m+1)+sigma(m-1) = 5*phi(m).at n=23A067242Number of 5Xn 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=10A302683