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

A257442

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

Terms

    a(0) =39a(1) =41a(2) =47a(3) =59a(4) =77a(5) =104a(6) =143a(7) =200a(8) =284a(9) =407a(10) =587a(11) =851a(12) =1238a(13) =1805a(14) =2636a(15) =3854a(16) =5639a(17) =8255a(18) =12089a(19) =17708a(20) =25943a(21) =38012a(22) =55700a(23) =81623a(24) =119615a(25) =175295a(26) =256898a(27) =376493a(28) =551768a(29) =808646

External references