Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #10 Jun 08 2019 16:27:59
%S 0,11,44,87,104,35,343,0,298,648,984,1216,1230,888,28,3385,1663,5616,
%T 2330,6375,631,4072,7655,11224,14599,17576,0,21400,21719,20584,17671,
%U 12632,5095,31295,20250,5543,32463,12016,39196,11353,37527,440,24150
%N Smallest integer >= 0 of the form x^3 - n^4.
%C a(n)=0 if n is a cube.
%F a(n) = ceiling(n^(4/3))^3 - n^4.
%t Array[Ceiling[#^(4/3)]^3-#^4&,50] (* _Harvey P. Dale_, Dec 24 2015 *)
%o (PARI) for(n=1,100,print1(ceil(n^(4/3))^3-n^4,","))
%Y Cf. A068527.
%K easy,nonn
%O 1,2
%A _Benoit Cloitre_, May 20 2002