Number of tilings of an 8 X n rectangle using dominoes and straight (3 X 1) trominoes.
A219871
Number of tilings of an 8 X n rectangle using dominoes and straight (3 X 1) trominoes.
Terms
- a(0) =1a(1) =4a(2) =123a(3) =5233a(4) =161800a(5) =6155230a(6) =223026907a(7) =8061851335a(8) =295743829064
External references
- oeis: A219871