T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the upper median plus the minimum minus the lower median of every 2X2 subblock.
A236780
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the upper median plus the minimum minus the lower median of every 2X2 subblock.
Terms
- a(0) =81a(1) =474a(2) =474a(3) =2797a(4) =4170a(5) =2797a(6) =16360a(7) =36260a(8) =36260a(9) =16360a(10) =95961a(11) =315666a(12) =471689a(13) =315666a(14) =95961a(15) =562284a(16) =2750070a(17) =6140316a(18) =6140316a(19) =2750070a(20) =562284a(21) =3296708a(22) =24023328a(23) =80610053a(24) =121728522a(25) =80610053a(26) =24023328a(27) =3296708a(28) =19317952
External references
- oeis: A236780