773430790domain: NAppears in sequencesT(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors.at n=29A238929Number of (2+1)X(n+1) 0..3 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors.at n=6A238931