86924domain: NAppears in sequencesFixed points of the permutation A087559.at n=38A131221Numbers n such that sigma(2*phi(n)) = 2*sigma(n).at n=32A137733Number of nX4 0..1 arrays with every element equal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=9A299570