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A217752 Number of hexagonal regions in the exterior of a regular n-gon with all diagonals drawn. 1
0, 0, 0, 0, 0, 0, 0, 0, 11, 0, 39, 14, 75, 112, 221 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,9

LINKS

Table of n, a(n) for n=3..17.

CROSSREFS

Cf. A067153, A217746.

Sequence in context: A087558 A087555 A185682 * A335646 A261173 A287468

Adjacent sequences:  A217749 A217750 A217751 * A217753 A217754 A217755

KEYWORD

nonn

AUTHOR

Martin Renner, Mar 23 2013

STATUS

approved

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Last modified August 17 12:30 EDT 2022. Contains 356189 sequences. (Running on oeis4.)