OFFSET
3,1
REFERENCES
Alexander Koeberlein, Elementary Geometry for College Students, 2nd Edition, Houghton Mifflin Company, Boston, 1999
FORMULA
a(n) = round(((n-2)*180)/n).
EXAMPLE
a(5) = (3*180)/5 = 108.
a(720) = 180; the maximum value. - Robert G. Wilson v, Mar 16 2016
MATHEMATICA
f[n_] := Round[180 (n - 2)/n]; Array[f, 55, 3] (* Robert G. Wilson v, Mar 16 2016 *)
PROG
(PARI) a(n) = round((n-2)*180/n); \\ Michel Marcus, Aug 27 2013
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Kristie Smith (kristie10spud(AT)hotmail.com), Apr 30 2002
EXTENSIONS
More terms from Michel Marcus, Aug 27 2013
STATUS
approved