Number of elementary edge-subgraphs in Moebius ladder M_n.

Terms

a(0) =17a(1) =58a(2) =181a(3) =602a(4) =2006a(5) =6797a(6) =23205a(7) =79771a(8) =275462a(9) =954367a(10) =3314074a(11) =11526782a(12) =40136519a(13) =139865123a(14) =487656165a(15) =1700907382a(16) =5934174209a(17) =20707036102a(18) =72265263946a(19) =252219473921a(20) =880346196329