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 A363858 #15 Jun 25 2023 10:42:08
%S A363858 0,0,0,0,0,1,0,0,0,0,0,2,0,0,0,0,0,2,0,0,0,0,0,2,1,0,0,0,0,2,0,0,0,0,
%T A363858 0,2,0,2,0,0,0,2,0,0,0,0,0,2,0,0,2,0,0,2,0,0,0,1,0,2,0,0,0,2,0,2,0,0,
%U A363858 0,0,0,2,0,0,0,0,2,4,0,0,0,0,0,2,0,0,0,0,0,4,0,0,0,0,0,2,0,2,0,0
%N A363858 Number of divisors of 7*n-6 of form 7*k+6.
%F A363858 a(n) = A363808(7*n-6).
%F A363858 G.f.: Sum_{k>0} x^(6*k)/(1 - x^(7*k-1)).
%t A363858 a[n_] := DivisorSum[7*n - 6, 1 &, Mod[#, 7] == 6 &]; Array[a, 100] (* _Amiram Eldar_, Jun 25 2023 *)
%o A363858 (PARI) a(n) = sumdiv(7*n-6, d, d%7==6);
%Y A363858 Cf. A361691, A363854, A363855, A363856, A363857.
%Y A363858 Cf. A359239, A359241, A359327.
%Y A363858 Cf. A363808.
%K A363858 nonn
%O A363858 1,12
%A A363858 _Seiichi Manyama_, Jun 24 2023