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

A258958

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

Terms

    a(0) =66a(1) =344a(2) =192a(3) =312a(4) =384a(5) =694a(6) =720a(7) =1210a(8) =1440a(9) =2674a(10) =2880a(11) =4840a(12) =5760a(13) =10696a(14) =11520a(15) =19360a(16) =23040a(17) =42784a(18) =46080a(19) =77440a(20) =92160a(21) =171136a(22) =184320a(23) =309760a(24) =368640a(25) =684544a(26) =737280a(27) =1239040a(28) =1474560a(29) =2738176

External references