Number of fullerenes with 2n vertices (or carbon atoms).

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =2a(5) =3a(6) =6a(7) =6a(8) =15a(9) =17a(10) =40a(11) =45a(12) =89a(13) =116a(14) =199a(15) =271a(16) =437a(17) =580a(18) =924a(19) =1205a(20) =1812a(21) =2385a(22) =3465a(23) =4478a(24) =6332a(25) =8149a(26) =11190a(27) =14246a(28) =19151a(29) =24109