Number of free linear polycubes of size n, identifying rotations but not reflections.

A363201

Number of free linear polycubes of size n, identifying rotations but not reflections.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =16a(5) =54a(6) =212a(7) =827a(8) =3369a(9) =13653a(10) =56052a(11) =229004a(12) =939935a(13) =3843859a(14) =15753903a(15) =64380796a(16) =263475472a(17) =1075780425a(18) =4397161320a(19) =17939394036a(20) =73251877235a(21) =298646347226

External references