A030138 Number of one-sided triangular n-ominoes (or triominoes) on the icosahedron.

1, 1, 1, 4, 6, 14, 26, 58, 109, 225, 359, 532, 549, 433, 214, 89, 20, 6, 1, 1

Offset: 1

Author

David W. Wilson

Keywords

• nonn
• fini
• full

References

• Daniel Johnson-Chyzhykov, G Menon, The Building Game: From Enumerative Combinatorics to Conformational Diffusion

Crossrefs

Cf. A030137.