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 A053213 #7 Oct 27 2023 22:00:45 %S A053213 1,2,2,6,4,8,12,12,12,4,56,24,36,12,48,120,216,144,120,60,60,64,236, %T A053213 36,384,840,360,192,528,496,944,144,1116,180,240,840,1656,864,2208, %U A053213 2112,720,240,4800,5040,720,1800,4680,4464,7236,1260,720,576,3744,5040,5040 %N A053213 Differences between the minimal numbers (A007416). %Y A053213 Cf. A007416, A053212, A005179. %K A053213 nonn %O A053213 1,2 %A A053213 _Asher Auel_, Dec 16 1999 %E A053213 More terms from _Naohiro Nomoto_, Jun 23 2001