The hyper-Wiener index of the Fibonacci cube Gamma(n) (n>=1).

Terms

a(0) =1a(1) =5a(2) =23a(3) =89a(4) =325a(5) =1123a(6) =3750a(7) =12174a(8) =38682a(9) =120750a(10) =371478a(11) =1128810a(12) =3394159a(13) =10112987a(14) =29892425a(15) =87737471a(16) =255912115a(17) =742272853a(18) =2142128604a(19) =6153811500a(20) =17605105380a(21) =50174676300a(22) =142501128540a(23) =403422149220