T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally, vertically and nw-se diagonally.

A253662

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally, vertically and nw-se diagonally.

Terms

    a(0) =81a(1) =518a(2) =518a(3) =3550a(4) =3318a(5) =3550a(6) =23524a(7) =25062a(8) =25062a(9) =23524a(10) =157476a(11) =181308a(12) =241548a(13) =181308a(14) =157476a(15) =1051870a(16) =1284808a(17) =2113406a(18) =2113406a(19) =1284808a(20) =1051870a(21) =7027770a(22) =9172142a(23) =17719343a(24) =21509980a(25) =17719343a(26) =9172142a(27) =7027770a(28) =46953514a(29) =65613880

External references