OFFSET
1,2
LINKS
Georg Fischer, Table of n, a(n) for n = 1..5000 [first 578 terms from K. D. Bajpai]
FORMULA
a(n) = floor((Pi*n^3)/6).
EXAMPLE
a(6)=113 since volume is (Pi*n^3)/6 = Pi*6^3/6 = 113.0973355 and floor(113.0973355) = 113.
MAPLE
a:= n-> floor((Pi*n^3)/6):
seq(a(n), n=1..100);
CROSSREFS
KEYWORD
nonn,easy,changed
AUTHOR
K. D. Bajpai, Aug 19 2013
STATUS
approved