Related to enumeration of rooted catapolyoctagons (see Cyvin reference for precise definition).

A121117

Related to enumeration of rooted catapolyoctagons (see Cyvin reference for precise definition).

Terms

    a(0) =0a(1) =0a(2) =0a(3) =1a(4) =20a(5) =274a(6) =3224a(7) =35119a(8) =366152a(9) =3717126a(10) =37101780a(11) =366240435a(12) =3588644268a(13) =34989880068a(14) =340028122980

External references