Number of vertex cuts in the n-prism graph.

Terms

a(0) =0a(1) =2a(2) =12a(3) =88a(4) =520a(5) =2654a(6) =12376a(7) =54612a(8) =232788a(9) =970538a(10) =3988644a(11) =16239088a(12) =65709280a(13) =264814166a(14) =1064414128a(15) =4271035692a(16) =17118683052a(17) =68563527650a(18) =274481537148