Number of square tiles in all tilings of a 3 X n board with 1 X 1 and L-shaped tiles (where the L-shaped tiles cover 3 squares).
A127868
Number of square tiles in all tilings of a 3 X n board with 1 X 1 and L-shaped tiles (where the L-shaped tiles cover 3 squares).
Terms
- a(0) =3a(1) =30a(2) =171a(3) =1044a(4) =5691a(5) =30678a(6) =159891a(7) =821100a(8) =4151511a(9) =20764590a(10) =102880755a(11) =505866804a(12) =2471159019a(13) =12004723878a(14) =58037429739a(15) =279405305676
External references
- oeis: A127868