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 A083902 #9 Jan 04 2024 01:49:23
%S A083902 1,2,2,3,2,4,2,3,2,4,2,6,2,4,4,4,2,4,1,6,4,4,2,7,3,4,3,5,1,8,2,5,4,4,
%T A083902 4,7,2,2,3,7,2,8,2,6,5,4,2,8,2,6,4,6,2,6,4,6,3,2,1,12,2,4,5,6,4,8,2,5,
%U A083902 3,8,2,9,2,4,6,4,4,6,1,8,3,3,1,10,3,3,2,6,1,9,3,5,3,3,2,9,1,4,4,9,2,8,2,7,8
%N A083902 Number of divisors of n with the largest digit of the divisor <= 7 (base 10).
%F A083902 a(n) = A083901(n) + A083894(n) = A083903(n) - A083895(n).
%F A083902 Asymptotic mean: Limit_{m->oo} (1/m) * Sum_{k=1..m} a(k) = Sum_{k>=1} 1/A007094(k) = 11.2915816168324913817... . - _Amiram Eldar_, Jan 04 2024
%t A083902 Table[Count[Divisors[n],_?(Max[IntegerDigits[#]]<8&)],{n,110}] (* _Harvey P. Dale_, Nov 01 2022 *)
%Y A083902 Cf. A054055, A000005, A007094, A083894, A083895, A083901, A083903.
%K A083902 nonn,base
%O A083902 1,2
%A A083902 _Reinhard Zumkeller_, May 08 2003
%E A083902 Definition clarified by _Harvey P. Dale_, Nov 01 2022