T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the upper median plus the lower median of every 2X2 subblock.
A236254
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the upper median plus the lower median of every 2X2 subblock.
Terms
- a(0) =256a(1) =3208a(2) =3208a(3) =40120a(4) =103364a(5) =40120a(6) =505708a(7) =3307762a(8) =3307762a(9) =505708a(10) =6373768a(11) =107457398a(12) =270817218a(13) =107457398a(14) =6373768a(15) =80221804a(16) =3483281438a(17) =22624359354a(18) =22624359354a(19) =3483281438a(20) =80221804a(21) =1009767552a(22) =112721511432
External references
- oeis: A236254