|
|
A077120
|
|
n^3 times nearest integer square to n^3.
|
|
0
|
|
|
0, 1, 72, 675, 4096, 15125, 48600, 123823, 270848, 531441, 1024000, 1724976, 3048192, 4853173, 7419776, 11353500, 16777216, 24073700, 33685632, 47251651, 63368000, 85349376, 112964632, 147220700, 192485376, 244140625
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,3
|
|
LINKS
|
|
|
FORMULA
|
|
|
MATHEMATICA
|
n3ts[n_]:=Module[{n3=n^3, a, b, sr}, sr=Sqrt[n3]; a=(Floor[sr])^2; b=(Ceiling[ sr])^2; If[n3-a<b-n3, n3*a, n3*b]]; Array[n3ts, 30, 0] (* Harvey P. Dale, Nov 27 2011 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|