T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the upper median minus the minimum of every 2X2 subblock equal.

A237809

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the upper median minus the minimum of every 2X2 subblock equal.

Terms

    a(0) =81a(1) =295a(2) =295a(3) =1085a(4) =1775a(5) =1085a(6) =4251a(7) =10433a(8) =10433a(9) =4251a(10) =16837a(11) =65777a(12) =94325a(13) =65777a(14) =16837a(15) =67947a(16) =413659a(17) =932255a(18) =932255a(19) =413659a(20) =67947a(21) =276369a(22) =2653941a(23) =9105033a(24) =14666689a(25) =9105033a(26) =2653941a(27) =276369a(28) =1134515a(29) =17059551

External references