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

A255142

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

Terms

    a(0) =47a(1) =115a(2) =302a(3) =784a(4) =2086a(5) =5661a(6) =15406a(7) =41999a(8) =114801a(9) =314146a(10) =859864a(11) =2354180a(12) =6446675a(13) =17654832a(14) =48350751a(15) =132419875a(16) =362668438a(17) =993273148a(18) =2720374234a(19) =7450570937a(20) =20405675838a(21) =55887227675a(22) =153064418321a(23) =419214227578

External references