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 A353320 #8 Apr 18 2022 22:42:56 %S A353320 243,625,1875,3969,4375,5625,6875,8125,9801,10625,11875,13125,13689, %T A353320 14375,18125,19375,19845,20625,23125,23409,24375,25625,26875,29241, %U A353320 29375,30625,31875,33125,35625,36875,38125,41875,42849,43125,43659,44375,45625,49375,50625,51597 %N A353320 Odd numbers m such that there exists no k for which the denominator of d(k)/k = m where d(k) is the number of divisors of k (A000005). %Y A353320 Cf. A000005, A091896. %K A353320 nonn %O A353320 1,1 %A A353320 _David A. Corneth_, Apr 11 2022