Number of tilings of a 3 X n rectangle using pentominoes of any shape and monominoes.
A278875
Number of tilings of a 3 X n rectangle using pentominoes of any shape and monominoes.
Terms
- a(0) =1a(1) =1a(2) =7a(3) =50a(4) =311a(5) =1954a(6) =11914a(7) =76003a(8) =467221a(9) =2943211a(10) =18261840a(11) =114360149a(12) =712196192a(13) =4449548684a(14) =27749537725a(15) =173227638835
External references
- oeis: A278875