T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having the minimum of its diagonal elements greater than the absolute difference of its antidiagonal elements.
A251158
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having the minimum of its diagonal elements greater than the absolute difference of its antidiagonal elements.
Terms
- a(0) =65a(1) =470a(2) =470a(3) =3374a(4) =8407a(5) =3374a(6) =24233a(7) =148833a(8) =148833a(9) =24233a(10) =173990a(11) =2644832a(12) =6441563a(13) =2644832a(14) =173990a(15) =1249276a(16) =46958048a(17) =280327551a(18) =280327551a(19) =46958048a(20) =1249276a(21) =8969854a(22) =833966807a(23) =12175291327a(24) =29975340928a(25) =12175291327a(26) =833966807
External references
- oeis: A251158