Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 1 and no column sum 1.
A256025
Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 1 and no column sum 1.
Terms
- a(0) =352a(1) =1302a(2) =5559a(3) =23134a(4) =96363a(5) =408233a(6) =1736085a(7) =7397708a(8) =31551114a(9) =134520680a(10) =573738336a(11) =2448028836a(12) =10444929115a(13) =44562381948a(14) =190130272304a(15) =811234013543
External references
- oeis: A256025