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 A036390 #9 Feb 12 2022 03:33:43 %S A036390 30,6,4,2,6,22,10,4,12,4,2,2,4,30,18,14,2,14,4,2,2,4,2,4,2,4,6,4,2,8, %T A036390 2,2,4,2,68,10,2,20,10,4,18,4,2,2,10,2,4,4,2,6,2,4,8,4,4,2,4,2,2,4,10, %U A036390 2,2,2,2,4,2,2,4,4,2,2,4,4,2,4,92,26,10,16,2,28,10,2,6,8,20,6,8,2,8,10,6 %N A036390 First differences of composite connected numbers (A029827). %C A036390 Observe the high local gaps, which arise between two connected numbers of binary order (A029837) g and g+1. E.g., five consecutive connected numbers in A029827 are 4087, 4089, 4095, 4369, and 4471, and corresponding differences are 2, 6, 274, and 102. Thus the density of connected numbers rises and falls in interval [ 2^(g-1), 2^g ]. %Y A036390 Cf. A029827, A029837. %K A036390 nonn %O A036390 1,1 %A A036390 _Labos Elemer_