Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime.
A251949
Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime.
Terms
- a(0) =12344a(1) =14434a(2) =47034a(3) =177132a(4) =875435a(5) =3678858a(6) =14138322a(7) =70829204a(8) =294856410a(9) =1132100600a(10) =5720636445a(11) =23687141361a(12) =90900692009a(13) =462774737917
External references
- oeis: A251949