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 A066650 #8 Mar 20 2025 03:26:26
%S A066650 1,3,4,6,7,8,11,13,14,15,16,18,19,20,21,22,23,25,27,29,30,32,34,35,38,
%T A066650 39,40,41,42,45,46,47,48,49,51,53,54,55,56,58,59,60,61,62,64,66,67,69,
%U A066650 70,71,74,75,77,78,79,81,83,84,85,86,87,88,90,92,93,94,95,96,97,98,99
%N A066650 Numbers not of the form a^2 + b^3 with a, b > 0.
%H A066650 Amiram Eldar, <a href="/A066650/b066650.txt">Table of n, a(n) for n = 1..10000</a>
%t A066650 q[n_] := Length[Reduce[a^2 + b^3 == n && a > 0 && b > 0, {a, b}, Integers]] == 0; Select[Range[100], q] (* _Amiram Eldar_, Mar 20 2025 *)
%Y A066650 Cf. A066649. Complement of A055394.
%K A066650 nonn
%O A066650 1,2
%A A066650 _Reinhard Zumkeller_, Dec 17 2001