Number of (n+1) X 2 0..2 arrays with no 2 X 2 subblock sum equal to any horizontal or vertical neighbor 2 X 2 subblock sum.
A185771
Number of (n+1) X 2 0..2 arrays with no 2 X 2 subblock sum equal to any horizontal or vertical neighbor 2 X 2 subblock sum.
Terms
- a(0) =81a(1) =558a(2) =3844a(3) =26784a(4) =186624a(5) =1296000a(6) =9000000a(7) =62568000a(8) =434972736a(9) =3022785216a(10) =21006444096a(11) =146001569472
External references
- oeis: A185771