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A110546
In degrees, values of interior angles of regular polygons whose angles are integers.
0
60, 90, 108, 120, 135, 140, 144, 150, 156, 160, 162, 165, 168, 170, 171, 172, 174, 175, 176, 177, 178, 179
OFFSET
1,1
COMMENTS
The number of sides for which the interior angles in degrees are integers is given by A018412 (except the first two terms).
Integers of the form (k-2)*180/k where k >= 3. - Jason Yuen, Sep 05 2024
FORMULA
a(n) = (A018412(n+2)-2)*180/A018412(n+2). - Jason Yuen, Sep 05 2024
EXAMPLE
a(3)=108, i.e., the value (in degrees) of the interior angles of the third polygon whose angles are integers (the pentagon).
CROSSREFS
KEYWORD
easy,fini,full,nonn
AUTHOR
Alexandre Wajnberg, Sep 11 2005
STATUS
approved