Number of fixed poly-[4.6.12]-tiles (holes allowed) with n cells (division into triangles is significant).
A197464
Number of fixed poly-[4.6.12]-tiles (holes allowed) with n cells (division into triangles is significant).
Terms
- a(0) =12a(1) =18a(2) =36a(3) =75a(4) =168a(5) =386a(6) =888a(7) =2079a(8) =4960a(9) =11988a(10) =29280a(11) =72145a(12) =179112a(13) =447636a(14) =1124956a(15) =2840097a(16) =7197780a(17) =18301738a(18) =46669404a(19) =119308938a(20) =305704584a(21) =784938678a(22) =2019335340a(23) =5204309886a(24) =13435321764a(25) =34738762062a(26) =89952855848
External references
- oeis: A197464