T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock summing to less than 6.
A184673
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock summing to less than 6.
Terms
- a(0) =150a(1) =1740a(2) =1740a(3) =19269a(4) =67330a(5) =19269a(6) =216912a(7) =2405797a(8) =2405797a(9) =216912a(10) =2430631a(11) =88458672a(12) =266060160a(13) =88458672a(14) =2430631a(15) =27278035a(16) =3225439429a(17) =30765364899a(18) =30765364899a(19) =3225439429a(20) =27278035a(21) =305991368a(22) =117938741095
External references
- oeis: A184673