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 A243543 #21 Dec 30 2019 19:21:21 %S A243543 1,2,4,6,12,18,36,72,54,108 %N A243543 Smallest number whose list of divisors contains n distinct digits (in base 10). %C A243543 Finite sequence with 10 terms. %e A243543 a(9) = 54 because 54 is the smallest number whose list of divisors contains 9 distinct digits; the list of divisors of 54: (1, 2, 3, 6, 9, 18, 27, 54) contains 9 distinct digits (1, 2, 3, 4, 5, 6, 7, 8, 9). %Y A243543 Cf. Sequences of numbers n such that list of divisors of n contains k distinct digits: k = 1: A243534; k = 2: A243535; k = 3: A243536; k = 4: A243537; k = 5: A243538; k = 6: A243539; k = 7: A243540; k = 8: A243541; k = 9: A243542; k = 10: A095050. %Y A243543 Cf. also A095048, A037278, A176558, A243360. %K A243543 nonn,base,fini,full,less %O A243543 1,2 %A A243543 _Jaroslav Krizek_, Jun 19 2014