Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 0 or 1 and no column sum 0 or 1.
A256806
Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 0 or 1 and no column sum 0 or 1.
Terms
- a(0) =641a(1) =4219a(2) =28655a(3) =187203a(4) =1226781a(5) =8090191a(6) =53254665a(7) =350253925a(8) =2304752967a(9) =15167443677a(10) =99803396861a(11) =656712280793
External references
- oeis: A256806