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 A292150 Number of distinct convex octagons that can be formed from n congruent isosceles right triangles. Reflections are not counted as distinct. 2
 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 3, 0, 1, 1, 1, 1, 1, 1, 5, 0, 3, 1, 1, 1, 3, 3, 5, 1, 1, 2, 8, 1, 3, 2, 7, 3, 3, 5, 4, 2, 8, 3, 12, 2, 4, 7, 7, 3, 6, 6, 15, 3, 5, 8, 12, 7, 9, 5, 15, 4, 12, 11, 11, 7, 6 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,30 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 octagonal polyabolos are for n = 14 and n = 20; both are symmetrical. CROSSREFS Strictly less than A245676. Sequence in context: A065714 A110700 A338939 * A181875 A051908 A056614 Adjacent sequences:  A292147 A292148 A292149 * A292151 A292152 A292153 KEYWORD nonn AUTHOR Douglas J. Durian, Sep 13 2017 EXTENSIONS a(33) and beyond from Douglas J. Durian, Jan 25 2020 STATUS approved

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Last modified September 28 18:42 EDT 2021. Contains 347717 sequences. (Running on oeis4.)