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

A255084

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

Terms

    a(0) =108a(1) =265a(2) =623a(3) =1483a(4) =3658a(5) =8830a(6) =21442a(7) =51939a(8) =125961a(9) =305879a(10) =742809a(11) =1803332a(12) =4375230a(13) =10620310a(14) =25781121a(15) =62583760a(16) =151913810a(17) =368742077a(18) =895059804a(19) =2172650028a(20) =5273900506a(21) =12801714866a(22) =31074374291a(23) =75428919286a(24) =183094180876

External references