This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A070928 #10 Jan 03 2021 12:32:23 %S A070928 0,8,54,17,131,40,282,113,567,296,1070,673,204,1352,721,0,1648,729, %T A070928 3141,2000,739,3993,2474,817,5111,3160,1053,6609,4172,1561,8625,5648, %U A070928 2479,11321,7750,3969,14883,10664,6217,1536,14600,9433,4014,19792 %N A070928 Smallest integer >= 0 of the form x^4 - n^3. %C A070928 a(n)=0 if n is a power of 4. %F A070928 a(n) = ceiling(n^(3/4))^4 - n^3. %t A070928 si[n_]:=Module[{k=Ceiling[Surd[n^3,4]]},While[!Integer[k^4-n^3],k++];k^4-n^3]; Array[si,50] (* _Harvey P. Dale_, Jan 03 2021 *) %o A070928 (PARI) for(n=1,100,print1(ceil(n^(3/4))^4-n^3,",")) %Y A070928 Cf. A068527. %K A070928 easy,nonn %O A070928 1,2 %A A070928 _Benoit Cloitre_, May 20 2002