T(n,k) = Number of (n+1) X (k+1) 0..3 arrays colored with the maximum plus the upper median minus the lower median minus the minimum of every 2 X 2 subblock.

A236202

T(n,k) = Number of (n+1) X (k+1) 0..3 arrays colored with the maximum plus the upper median minus the lower median minus the minimum of every 2 X 2 subblock.

Terms

    a(0) =256a(1) =3020a(2) =3020a(3) =35874a(4) =83520a(5) =35874a(6) =427680a(7) =2333864a(8) =2333864a(9) =427680a(10) =5098640a(11) =65619060a(12) =154372370a(13) =65619060a(14) =5098640a(15) =60725856a(16) =1841566940a(17) =10285852068a(18) =10285852068a(19) =1841566940a(20) =60725856a(21) =723344402a(22) =51632113352a(23) =683105437984

External references