Number of ways to cover (without overlapping) a ring lattice (necklace) of n sites with molecules that are 5 sites wide.

A058368

Number of ways to cover (without overlapping) a ring lattice (necklace) of n sites with molecules that are 5 sites wide.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =6a(5) =7a(6) =8a(7) =9a(8) =10a(9) =16a(10) =23a(11) =31a(12) =40a(13) =50a(14) =66a(15) =89a(16) =120a(17) =160a(18) =210a(19) =276a(20) =365a(21) =485a(22) =645a(23) =855a(24) =1131a(25) =1496a(26) =1981a(27) =2626a(28) =3481a(29) =4612

External references