Hosoya indices of the 2n-wheel graphs W_{2n}.

Terms

a(0) =2a(1) =10a(2) =36a(3) =120a(4) =382a(5) =1178a(6) =3550a(7) =10514a(8) =30720a(9) =88788a(10) =254342a(11) =723190a(12) =2043386a(13) =5742490a(14) =16062492a(15) =44744688a(16) =124192270a(17) =343594514a(18) =947857750a(19) =2608015778a(20) =7159034232a(21) =19609583820a(22) =53608363286a(23) =146290947310a(24) =398552156402