Triangle read by rows: T(n,k) is the number of tilings of a 2 X n board with 1 X 1 and L-shaped tiles (where the L-shaped tiles cover 3 squares) that have k L-shaped tiles.
A245966
Triangle read by rows: T(n,k) is the number of tilings of a 2 X n board with 1 X 1 and L-shaped tiles (where the L-shaped tiles cover 3 squares) that have k L-shaped tiles.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =1a(5) =8a(6) =2a(7) =1a(8) =12a(9) =20a(10) =1a(11) =16a(12) =54a(13) =16a(14) =1a(15) =20a(16) =104a(17) =112a(18) =4a(19) =1a(20) =24a(21) =170a(22) =352a(23) =108a(24) =1a(25) =28a(26) =252a(27) =800a(28) =664a(29) =48
External references
- oeis: A245966