Number of tilings of a 6 X n rectangle using dominoes and straight (3 X 1) trominoes.
A219869
Number of tilings of a 6 X n rectangle using dominoes and straight (3 X 1) trominoes.
Terms
- a(0) =1a(1) =2a(2) =30a(3) =472a(4) =5624a(5) =82634a(6) =1143834a(7) =15859323a(8) =223026907a(9) =3105936858a(10) =43427618185a(11) =606962113407
External references
- oeis: A219869