486940domain: NAppears in sequencesNumber of 6-ary rooted trees with n nodes and height exactly 4.at n=26A036642Number of (n+1)X(7+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically.at n=15A253697