Number of (n+1)X(1+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements.

A251395

Number of (n+1)X(1+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements.

Terms

    a(0) =226a(1) =3205a(2) =45542a(3) =647154a(4) =9195809a(5) =130668665a(6) =1856748750a(7) =26383648169a(8) =374900959420

External references