Number of fixed poly-[3.6.3.6]-tiles (holes allowed) with n cells (division into rhombi is significant).

A197461

Number of fixed poly-[3.6.3.6]-tiles (holes allowed) with n cells (division into rhombi is significant).

Terms

    a(0) =3a(1) =6a(2) =14a(3) =36a(4) =99a(5) =281a(6) =816a(7) =2415a(8) =7260a(9) =22074a(10) =67743a(11) =209552a(12) =652566a(13) =2043672a(14) =6431715a(15) =20328504a(16) =64494678a(17) =205303537a(18) =655493697a(19) =2098500135a(20) =6734498816a(21) =21660087087a(22) =69805491342

External references