Number of (n+2)X(4+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 5 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 5 6 or 7.

A252144

Number of (n+2)X(4+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 5 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 5 6 or 7.

Terms

    a(0) =8132a(1) =3797a(2) =4416a(3) =5860a(4) =8391a(5) =11662a(6) =17166a(7) =25025a(8) =36612a(9) =54416a(10) =82121a(11) =119328a(12) =180164a(13) =266685a(14) =401534a(15) =600440a(16) =916707a(17) =1359940a(18) =2087210a(19) =3122195a(20) =4773764a(21) =7180420a(22) =11064993a(23) =16584382a(24) =25660862a(25) =38641561a(26) =59663236a(27) =90104864a(28) =139698239

External references