26698domain: NAppears in sequencesNumber of distinct products i*j*k*l for 1 <= i <= j <= k <= l <= n.at n=41A100437Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero.at n=7A304468Numbers k such that 475*2^k+1 is prime.at n=8A319486