Number of 6-cycles in the n-polygon diagonal intersection graph.

Terms

a(0) =0a(1) =0a(2) =35a(3) =91a(4) =98a(5) =272a(6) =279a(7) =530a(8) =561a(9) =1440a(10) =1079a(11) =1904a(12) =1890a(13) =3360a(14) =3128a(15) =6066a(16) =4579a(17) =7580a(18) =6993a(19) =10648a(20) =10212a(21) =18696a(22) =13875a(23) =19968a(24) =18981a(25) =26936a(26) =25056a(27) =47130a(28) =32953a(29) =44864