Table read by downward antidiagonals: T(n,k) is the number of tilings of the n X k cylinder up to 180-degree rotation by two tiles that are each fixed under 180-degree rotation.
A368262
Table read by downward antidiagonals: T(n,k) is the number of tilings of the n X k cylinder up to 180-degree rotation by two tiles that are each fixed under 180-degree rotation.
Terms
- a(0) =2a(1) =3a(2) =3a(3) =6a(4) =7a(5) =4a(6) =10a(7) =24a(8) =16a(9) =6a(10) =20a(11) =76a(12) =104a(13) =43a(14) =8a(15) =36a(16) =288a(17) =720a(18) =570a(19) =120a(20) =13a(21) =72a(22) =1072a(23) =5600a(24) =8356a(25) =3408a(26) =382a(27) =18a(28) =136a(29) =4224
External references
- oeis: A368262