OFFSET
3,3
COMMENTS
See illustration in links.
LINKS
Kival Ngaokrajang, Illustration of initial terms
FORMULA
a(n) = Floor((n/tan(Pi/n)) - Pi*((n/2)-1)).
PROG
(PARI)for (n=3, 100, print1(floor((n/tan(Pi/n))-Pi*((n/2)-1)), ", "))
CROSSREFS
KEYWORD
nonn
AUTHOR
Kival Ngaokrajang, Nov 22 2014
STATUS
approved