cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A383495 Number of polyforms with n cells on the faces of a pentakis dodecahedron up to rotation.

Original entry on oeis.org

1, 1, 2, 3, 8, 18, 46, 108, 280, 694, 1788, 4544, 11740, 30105, 77584, 199102, 510910, 1305859, 3328504, 8441297, 21293077, 53315322, 132301407, 324539916, 784969397, 1866286028, 4347578908, 9887356006, 21865065180, 46806020153, 96503472390, 190548248699
Offset: 0

Views

Author

Peter Kagey, Apr 28 2025

Keywords

Comments

These are "one-sided" polyforms.
The pentakis dodecahedron is the polyhedral dual of the truncated icosahedron.

Crossrefs

Cf. A383494 (free).
Cf. A030137 (dodecahedron), A030138 (icosahedron), A383491 (rhombic triacontahedron), A383493 (triakis icosahedron), A383497 (disdyakis triacontahedron), A383498 (deltoidal hexecontahedron).

Extensions

a(14)-a(31) from Bert Dobbelaere, Jun 12 2025