2930016domain: NAppears in sequencesThe number of bicrucial (with respect to squares) permutations of 1,...,n.at n=14A238935Number of (n+2)X(4+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally and vertically.at n=10A253363