OFFSET
0,5
COMMENTS
LINKS
Kival Ngaokrajang, Illustration of heptaflake for n = 0..3
Wikipedia, n-flake
FORMULA
a(n) = floor(4^n/A116425(n)^n).
MAPLE
A240671:=n->floor(4^n/(2+2*cos(2*Pi/7))^n); seq(A240671(n), n=0..50); # Wesley Ivan Hurt, Apr 10 2014
MATHEMATICA
Table[Floor[4^n/(2 + 2*Cos[2*Pi/7])^n], {n, 0, 50}] (* Wesley Ivan Hurt, Apr 10 2014 *)
PROG
(PARI) {a(n)=floor(4^n/(2+2*cos(2*Pi/7))^n)}
for (n=0, 100, print1(a(n), ", "))
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Kival Ngaokrajang, Apr 10 2014
STATUS
approved