Number of ternary Lyndon words with exactly five 1's.

Terms

a(0) =2a(1) =12a(2) =56a(3) =224a(4) =806a(5) =2688a(6) =8448a(7) =25344a(8) =73216a(9) =205004a(10) =559104a(11) =1490944a(12) =3899392a(13) =10027008a(14) =25401752a(15) =63504384a(16) =156893184a(17) =383516672a(18) =928514048a(19) =2228433712a(20) =5305794560a(21) =12540968960a(22) =29444014080a(23) =68702699520a(24) =159390262880