A390192 Number of symmetric polyominoes in {4,5} tessellation of the hyperbolic plane.

1, 1, 2, 4, 8, 16, 35, 71, 159, 331, 747, 1583, 3624, 7806, 18019, 39326, 91428, 201690, 471680, 1049635

Offset

1,3

Links

Table of n, a(n) for n=1..20.

Crossrefs

Cf. A119611, A390191, A390193, A390194.

Sequence in context: A336009 A180207 A013025 * A034339 A244519 A247293

Adjacent sequences: A390189 A390190 A390191 * A390193 A390194 A390195

Keyword

nonn,more

Author

John Mason, Érika Roldán and Rosemberg Toalá-Enríquez, Oct 30 2025

Status

approved