A292148 Number of distinct convex hexagons that can be formed from n congruent isosceles right triangles. Reflections are not counted as distinct.

0, 0, 0, 0, 0, 1, 0, 1, 1, 3, 1, 2, 2, 4, 1, 4, 2, 6, 5, 5, 5, 10, 2, 6, 6, 8, 8, 10, 7, 14, 7, 10, 6, 13, 12, 12, 13, 19, 8, 16, 6, 15, 22, 17, 16, 25, 9, 16, 10, 23, 21, 22, 18, 27, 23, 18, 16, 29, 21, 29, 20, 35, 18, 27, 18, 23, 39, 28, 24, 43, 21, 32, 19

Offset

1,10

Comments

Illustrated with other convex polyabolos in A245676.

Links

Douglas J. Durian, Table of n, a(n) for n = 1..750

Example

The smallest convex hexagonal polyabolo that is asymmetric is for n = 9.

Crossrefs

Strictly less than A245676.

Sequence in context: A211939 A010280 A318556 * A125266 A002016 A282016

Adjacent sequences: A292145 A292146 A292147 * A292149 A292150 A292151

Keyword

nonn

Author

Douglas J. Durian, Sep 13 2017

Extensions

a(33) and beyond from Douglas J. Durian, Jan 24 2020

Status

approved