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A292148 Number of distinct convex hexagons that can be formed from n congruent isosceles right triangles. Reflections are not counted as distinct. 2
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified September 23 17:47 EDT 2021. Contains 347618 sequences. (Running on oeis4.)