Number of minimal edge covers in the n-Plummer-Toft graph.

Terms

a(0) =25a(1) =66a(2) =181a(3) =456a(4) =1075a(5) =2579a(6) =6082a(7) =14414a(8) =34450a(9) =82895a(10) =201315a(11) =492855a(12) =1215426a(13) =3016505a(14) =7526261a(15) =18860558a(16) =47431375a(17) =119619948a(18) =302351431a(19) =765563707a(20) =1941079274a(21) =4926790178a(22) =12515217136a(23) =31811484793a(24) =80897818405a(25) =205801073727a(26) =523695045908