Half the number of (n+2)X6 binary arrays with each 3X3 subblock having sum 3, 4, 5 or 6.
A187312
Half the number of (n+2)X6 binary arrays with each 3X3 subblock having sum 3, 4, 5 or 6.
Terms
- a(0) =71836a(1) =3029032a(2) =125103786a(3) =5243407780a(4) =219684364642
External references
- oeis: A187312