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 A273165 #5 Aug 03 2016 09:02:21 %S A273165 2,2,2,2,2,2,3,3,2,2,2,3,2,2,2,2,4,2,3,2,2,3,3,2,2,4,4,4,4,4,4,4,4,4, %T A273165 4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4, %U A273165 4,4 %N A273165 One half the number of divisors of nonprime numbers that are 3 (mod 4). %C A273165 Row length numbers of A273164. %C A273165 With the Jan 05 2004 Jovovic comment on A078703 a(n) is also the number of divisors +1 as well as -1 (mod 4) of A091236(n). See the example section of A273164. %F A273165 a(n) = number of divisors of A091236(n)(nonprime numbers 3 (mod 4)). %Y A273165 Cf. A078703, A091236, A273164. %K A273165 nonn,easy %O A273165 1,1 %A A273165 _Wolfdieter Lang_, Jul 29 2016