Number of ways to tile a 4 X n room with 1x2 Tatami mats. At most 3 Tatami mats may meet at a point.
A068923
Number of ways to tile a 4 X n room with 1x2 Tatami mats. At most 3 Tatami mats may meet at a point.
Terms
- a(0) =1a(1) =4a(2) =4a(3) =2a(4) =3a(5) =3a(6) =3a(7) =5a(8) =5a(9) =6a(10) =8a(11) =8a(12) =11a(13) =13a(14) =14a(15) =19a(16) =21a(17) =25a(18) =32a(19) =35a(20) =44a(21) =53a(22) =60a(23) =76a(24) =88a(25) =104a(26) =129a(27) =148a(28) =180a(29) =217
External references
- oeis: A068923