T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the lower median minus the minimum of every 2X2 subblock.
A236319
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the lower median minus the minimum of every 2X2 subblock.
Terms
- a(0) =256a(1) =2744a(2) =2744a(3) =29670a(4) =61262a(5) =29670a(6) =319908a(7) =1362884a(8) =1362884a(9) =319908a(10) =3455790a(11) =30415198a(12) =62811760a(13) =30415198a(14) =3455790a(15) =37315466a(16) =680489392a(17) =2909136874a(18) =2909136874a(19) =680489392a(20) =37315466a(21) =402944837a(22) =15223905144a(23) =135542325383
External references
- oeis: A236319