Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum 3 and no antidiagonal sum 3 and no row sum 0 and no column sum 0.

A256747

Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum 3 and no antidiagonal sum 3 and no row sum 0 and no column sum 0.

Terms

    a(0) =31032a(1) =28816a(2) =38376a(3) =33616a(4) =96576a(5) =155792a(6) =404480a(7) =615296a(8) =1258112a(9) =1664400a(10) =5004928a(11) =7111808a(12) =19624576a(13) =26821008a(14) =65198848a(15) =91451776a(16) =279105152a(17) =356736400a(18) =1053470592a(19) =1397940864a(20) =3792784000a(21) =5223606672a(22) =16267412480a(23) =19397621632

External references