A376899 Total number of ways a triangle of order n can be completely surrounded by a specific pentiamond.

160, 24, 27, 8, 0, 0, 0

Offset: 1

Author

Craig Knecht, Oct 08 2024

Keywords

• nonn
• more

Comments

The coronal expansion number is defined to be the number of expansions the central host frame can undergo and still have a corona formed by the coronal tile. The coronal expansion number is 4 for this sequence. See the links section for an example of a pseudo-triangle as the central host frame that has a coronal expansion number of 7. Craig Knecht, Oct 31 2024

Links

• Craig Knecht, Pseudo triangle with a coronal expansion number of 7.
• Craig Knecht, The 160 ways this pentiamond can surround a T1 triangle.
• Craig Knecht, T2, T3, and T4 surrounded by this pentiamond.