Number of (n+2)X(1+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 1 and no row sum 0 and no column sum 0.

A255776

Number of (n+2)X(1+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 1 and no row sum 0 and no column sum 0.

Terms

    a(0) =140a(1) =436a(2) =1512a(3) =5126a(4) =17325a(5) =58707a(6) =198635a(7) =672183a(8) =2274999a(9) =7699081a(10) =26056081a(11) =88181805a(12) =298433705a(13) =1009989977a(14) =3418112157a(15) =11567925109a(16) =39149360907a(17) =132493286347a(18) =448397385023

External references