835695domain: NAppears in sequencesNumber of nX3 0..1 arrays with every element unequal to 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.at n=19A304258T(m,n) is the least k such that the partial sum of the series Sum_{j=0..k} 1/(m*j+1) is > n, read by ascending antidiagonals.at n=38A337748