A338992 Number of vertices of a hexagonal tessellation that lie on subsequent circles centered at the center of one hexagon.

0, 6, 6, 12, 12, 6, 12, 6, 12, 12, 12, 12, 18, 12, 12, 6, 12, 12, 12, 12, 24, 12, 6, 12, 12, 12, 6, 12, 12, 24, 12, 12, 12, 12, 12, 18, 12, 12, 12, 12, 18, 12, 12, 12, 24, 12, 12, 12, 12, 24, 6, 24, 12, 12, 12, 12, 6, 12, 24, 12, 12, 12, 12, 12, 12, 12, 24, 12, 18

Offset: 0

Author

Szymon Lukaszyk, Nov 17 2020

Keywords

• nonn

Comments

Radii of these circles are square roots of A202822.

This is A217219 with zeros dropped, except for a(0). - Andrey Zabolotskiy, Jun 21 2022

Links

• Szymon Lukaszyk, MATLAB script
• Szymon Lukaszyk, A short note about the geometry of graphene, ResearchGate, (2020).
• Szymon Lukaszyk, Illustration of the subsequent 36 radii around a hex center.

Crossrefs

Cf. A202822, A217219, A338947 (similar but with circles centered at a vertex of one hexagon).