a(n) is the number of tilings of a bracelet of length 2n with 1 color of 5-minoes and 6-minoes, 2 colors of 7-minoes and 8-minoes, 3 colors of 9-minoes and 10-minoes, and so on.
A334047
a(n) is the number of tilings of a bracelet of length 2n with 1 color of 5-minoes and 6-minoes, 2 colors of 7-minoes and 8-minoes, 3 colors of 9-minoes and 10-minoes, and so on.
Terms
- a(0) =0a(1) =0a(2) =6a(3) =16a(4) =35a(5) =78a(6) =168a(7) =352a(8) =735a(9) =1535a(10) =3201a(11) =6670a(12) =13897a(13) =28952a(14) =60311a(15) =125632a(16) =261698a(17) =545127a(18) =1135516a(19) =2365311a(20) =4927005a(21) =10263077a(22) =21378247a(23) =44531422a(24) =92760060a(25) =193221509a(26) =402485199a(27) =838386656
External references
- oeis: A334047