T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock.
A236669
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock.
Terms
- a(0) =81a(1) =452a(2) =452a(3) =2608a(4) =3720a(5) =2608a(6) =14760a(7) =30352a(8) =30352a(9) =14760a(10) =84948a(11) =250708a(12) =368090a(13) =250708a(14) =84948a(15) =484400a(16) =2079296a(17) =4434788a(18) =4434788a(19) =2079296a(20) =484400a(21) =2771648a(22) =17174856a(23) =55108806a(24) =82202172a(25) =55108806a(26) =17174856a(27) =2771648a(28) =15802528a(29) =141244420
External references
- oeis: A236669