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 A104758 #5 Jul 30 2015 23:18:46 %S A104758 2,1,1,1,1,2,2,3,3,2,2,3,3,3,4,4,4,4,5,5,5,5,6,6,6,6,7,7,6,6,6,7,7,7, %T A104758 7,7,8,8,8,8,8,9,9,9,9,9,10,10,10,10,10,10,11,11,11,11,11,11,12,12,12, %U A104758 12,12,13,13,12,12,12,12,12,13,13,13,13,13,13,14,14,14,14,14,14,15,15,15 %N A104758 Number of cubes m = k^3 such that n <= m <= (n+1)^2. %C A104758 a(n)>=1 because between n and (n+1)^2 there is always at least one cubic number. %C A104758 a(6)=2 because between 5 and 6^2 there are two cubic numbers: 8 and 27 %t A104758 f[n_] := Floor[(n + 1)^(2/3)] - Floor[n^(1/3)] + If[ IntegerQ[n^(1/3)], 1, 0]; Table[ f[n], {n, 0, 84}] (* _Robert G. Wilson v_, Apr 24 2005 *) %K A104758 easy,nonn %O A104758 0,1 %A A104758 _Giovanni Teofilatto_, Apr 23 2005 %E A104758 More terms from _Robert G. Wilson v_, Apr 24 2005