Number of (n+1)X3 0..2 arrays with every 2X2 subblock diagonal sum less antidiagonal sum equal to some horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum.

A185499

Number of (n+1)X3 0..2 arrays with every 2X2 subblock diagonal sum less antidiagonal sum equal to some horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum.

Terms

    a(0) =99a(1) =697a(2) =4451a(3) =30775a(4) =207705a(5) =1418183a(6) =9658679a(7) =65903901a(8) =449371311a(9) =3065504279a(10) =20907068253a(11) =142616273243a(12) =972755259615

External references