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 A373218 #22 Jun 24 2024 04:41:52 %S A373218 1,27,729,46656 %N A373218 Cubes equal to the sum of a factorial number and a square. %C A373218 Cubes c^3 for which the c-th row of A167222 includes a factorial number. - _Michel Marcus_, May 28 2024 %C A373218 a(5) > 8*10^24. - _Michael S. Branicky_, Jun 23 2024 %C A373218 a(5) > 10^38. - _Martin Ehrenstein_, Jun 24 2024 %e A373218 1 = 1! + 0^2. %e A373218 27 = 2! + 5^2. %e A373218 729 = 6! + 3^2. %e A373218 46656 = 7! + 204^2. %o A373218 (PARI) isok(k) = my(c=k^3, i=1, p=1); while (1, if (issquare(c-p), return(1)); i++; p *=i; if (p> c, return(0));); %o A373218 for (n=1, 50, if (isok(n), print1(n^3, ", "))); \\ _Michel Marcus_, Jun 06 2024 %Y A373218 Cf. A000142, A000290, A000578, A167222. %K A373218 nonn,more %O A373218 1,2 %A A373218 _Gonzalo MartÃnez_, May 28 2024