Number of oriented polyominoes with n heptagonal cells of the hyperbolic regular tiling with Schläfli symbol {7,oo}.
A389561
Number of oriented polyominoes with n heptagonal cells of the hyperbolic regular tiling with Schläfli symbol {7,oo}.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =26a(5) =203a(6) =1989a(7) =20254a(8) =219388a(9) =2459730a(10) =28431861a(11) =336492104a(12) =4062243024a(13) =49863336565a(14) =620840444834
External references
- oeis: A389561