T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock.
A237082
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock.
Terms
- a(0) =81a(1) =484a(2) =484a(3) =2928a(4) =4526a(5) =2928a(6) =17644a(7) =42300a(8) =42300a(9) =17644a(10) =106528a(11) =395028a(12) =612776a(13) =395028a(14) =106528a(15) =641736a(16) =3675408a(17) =8844156a(18) =8844156a(19) =3675408a(20) =641736a(21) =3871696a(22) =34334240a(23) =127825204a(24) =199693088a(25) =127825204a(26) =34334240a(27) =3871696a(28) =23356112
External references
- oeis: A237082