Number of (n+2)X5 0..2 arrays with each 3X3 subblock having sum 9.
A187642
Number of (n+2)X5 0..2 arrays with each 3X3 subblock having sum 9.
Terms
- a(0) =101419a(1) =363533a(2) =1342083a(3) =5273797a(4) =24351579a(5) =115259453a(6) =564564211a(7) =3003056861a(8) =16240656315a(9) =89645104453a(10) =519095822283
External references
- oeis: A187642