Number of n-bead 5-ary necklaces (no turning over allowed) that avoid the subsequence 110.

A274020

Number of n-bead 5-ary necklaces (no turning over allowed) that avoid the subsequence 110.

Terms

    a(0) =1a(1) =5a(2) =15a(3) =44a(4) =160a(5) =604a(6) =2510a(7) =10545a(8) =45825a(9) =201669a(10) =900307a(11) =4057625a(12) =18447565a(13) =84444000a(14) =388878560a(15) =1799985435a(16) =8368841895a(17) =39062428790a(18) =182961584260a(19) =859612223990

External references