T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise.
A235588
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise.
Terms
- a(0) =81a(1) =549a(2) =549a(3) =3459a(4) =8678a(5) =3459a(6) =20537a(7) =125917a(8) =125917a(9) =20537a(10) =118383a(11) =1660676a(12) =4421414a(13) =1660676a(14) =118383a(15) =668041a(16) =20719004a(17) =140378037a(18) =140378037a(19) =20719004a(20) =668041a(21) =3720671a(22) =246491295a(23) =4163928036a(24) =11284713813a(25) =4163928036a(26) =246491295
External references
- oeis: A235588