2467403domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of (n+1)X(1+1) 0..2 arrays with the maximum plus the lower median of every 2X2 subblock equal.at n=7A237474T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the lower median of every 2X2 subblock equal.at n=28A237481Prime numbersat n=180875