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 A364716 #9 Aug 04 2023 08:16:01 %S A364716 61,193,277,361,397,421,457,613,757,997,1213,1237,1453,1657,1867,1873, %T A364716 1933,2137,2347,2593,2797,2917,3013,3183,3217,3361,3427,3481,3517, %U A364716 3697,3721,3805,4057,4083,4177,4261,4603,4621,4717,4771,4813,4957,5029,5041,5101,5107,5223 %N A364716 Numbers k such that d(k) < d(k+1) < d(k+2) < d(k+3), where d(n) is the number of divisors of n. %o A364716 (PARI) isok(n) = numdiv(n)<numdiv(n+1) && numdiv(n+1)<numdiv(n+2) && numdiv(n+2)<numdiv(n+3); %Y A364716 Cf. A000005, A075028, A364662, A364719. %Y A364716 Cf. A074775, A364715, A364717. %K A364716 nonn %O A364716 1,1 %A A364716 _Seiichi Manyama_, Aug 04 2023