Number of ways to tile a hexagonal strip made up of n equilateral triangles, using singles and triples.

A365352

Number of ways to tile a hexagonal strip made up of n equilateral triangles, using singles and triples.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =4a(6) =10a(7) =16a(8) =23a(9) =29a(10) =70a(11) =113a(12) =166a(13) =211a(14) =505a(15) =813a(16) =1191a(17) =1515a(18) =3631a(19) =5846a(20) =8566a(21) =10894a(22) =26105a(23) =42032a(24) =61590a(25) =78330a(26) =187700a(27) =302216a(28) =442837a(29) =563199

External references