Number of irredundant sets in the n-wheel graph.

Terms

a(0) =5a(1) =12a(2) =17a(3) =25a(4) =44a(5) =76a(6) =131a(7) =219a(8) =376a(9) =645a(10) =1107a(11) =1894a(12) =3245a(13) =5564a(14) =9539a(15) =16351a(16) =28027a(17) =48047a(18) =82367a(19) =141200a(20) =242054a(21) =414949a(22) =711342a(23) =1219443a(24) =2090471a(25) =3583662a(26) =6143420a(27) =10531575a(28) =18054123a(29) =30949916