Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum 2 and no antidiagonal sum 2 and no row sum 0 and no column sum 0.
A255787
Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum 2 and no antidiagonal sum 2 and no row sum 0 and no column sum 0.
Terms
- a(0) =361a(1) =491a(2) =1050a(3) =2141a(4) =4908a(5) =11631a(6) =28009a(7) =69326a(8) =174169a(9) =438621a(10) =1112366a(11) =2823355a(12) =7188661a(13) =18288126a(14) =46636012a(15) =118746423a(16) =302960773a(17) =771654913a(18) =1969083737a(19) =5015887134a(20) =12800207475a(21) =32607429469a(22) =83213838466a(23) =211983036189
External references
- oeis: A255787