T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the lower median of every 2X2 subblock equal.
A237150
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the lower median of every 2X2 subblock equal.
Terms
- a(0) =256a(1) =1472a(2) =1472a(3) =8128a(4) =17616a(5) =8128a(6) =48672a(7) =197724a(8) =197724a(9) =48672a(10) =289648a(11) =2463178a(12) =4365504a(13) =2463178a(14) =289648a(15) =1763648a(16) =30395540a(17) =111073520a(18) =111073520a(19) =30395540a(20) =1763648a(21) =10742400a(22) =386318536a(23) =2747051348a(24) =5913259332a(25) =2747051348a(26) =386318536
External references
- oeis: A237150