T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the difference of the upper median and the lower median in each 2X2 subblock.

A236035

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the difference of the upper median and the lower median in each 2X2 subblock.

Terms

    a(0) =81a(1) =384a(2) =384a(3) =1848a(4) =2460a(5) =1848a(6) =8856a(7) =14980a(8) =14980a(9) =8856a(10) =42724a(11) =93640a(12) =116786a(13) =93640a(14) =42724a(15) =205660a(16) =595416a(17) =965344a(18) =965344a(19) =595416a(20) =205660a(21) =990076a(22) =3752292a(23) =8289258a(24) =11384132a(25) =8289258a(26) =3752292a(27) =990076a(28) =4760380a(29) =23516900

External references