45253domain: NAppears in sequencesNumber of n X 6 0..1 arrays with every element equal to 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.at n=13A298175a(n) = Sum_{k=1..n} k^floor((n-k)/k).at n=29A344551Numbers k such that sigma(k) = psi(k) + tau(k) + omega(k)^3.at n=15A392263