Number of distinct paths of length 2n+1 along edges of a unit cube between two fixed adjacent vertices.

A066443

Number of distinct paths of length 2n+1 along edges of a unit cube between two fixed adjacent vertices.

Terms

    a(0) =1a(1) =7a(2) =61a(3) =547a(4) =4921a(5) =44287a(6) =398581a(7) =3587227a(8) =32285041a(9) =290565367a(10) =2615088301a(11) =23535794707a(12) =211822152361

External references