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n^3+Smallest square, (Smallest square >= n^3).
6

%I #5 Jun 18 2018 15:46:11

%S 0,2,17,63,128,269,441,704,1041,1458,2024,2700,3492,4406,5553,6856,

%T 8192,9954,11761,13748,16100,18670,21464,24488,27748,31250,35265,

%U 39564,44153,49038,54225,59720,65892,72037,78905,86139,93312,101729,110097,118855

%N n^3+Smallest square, (Smallest square >= n^3).

%C 2^3+9=17,3^3+36=63,..

%H Robert Israel, <a href="/A176581/b176581.txt">Table of n, a(n) for n = 0..10000</a>

%p seq(n^3 + ceil(sqrt(n^3))^2, n=0..100); # _Robert Israel_, Jun 18 2018

%t r[n_]:=n^3;f[n_]:=r[n]+Ceiling[Sqrt[r[n]]]^2;Table[f[n],{n,0,5!}]

%Y Cf. A065733, A077116, A176580

%K nonn

%O 0,2

%A _Vladimir Joseph Stephan Orlovsky_, Apr 21 2010

%E Offset corrected by _Robert Israel_, Jun 18 2018