Numbers of isomers of unbranched a-4-catapolyheptagons - see Brunvoll reference for precise definition.
A121140
Numbers of isomers of unbranched a-4-catapolyheptagons - see Brunvoll reference for precise definition.
Terms
- a(0) =1a(1) =3a(2) =21a(3) =116a(4) =692a(5) =3776a(6) =20216a(7) =104448
External references
- oeis: A121140