Number of perfect matchings in graph P_{2} X C_{6} X P_{n}.

A028458

Number of perfect matchings in graph P_{2} X C_{6} X P_{n}.

Terms

    a(0) =1a(1) =20a(2) =3108a(3) =297296a(4) =31937617a(5) =3350337360a(6) =353544256465

External references