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 A254622 #12 Feb 23 2015 17:52:18 %S A254622 9,27,61,124,255,474,860,1597,2726,4232,6741,10391,16177,24480,34926, %T A254622 47875,65896,92255,139262,198988,271642,357674,474239,609442,773493, %U A254622 1029477,1404094,1857856,2392385,3169652,4059322,5102419,6482700,8041992 %N A254622 Number of zerofree positive integers of at most n digits having product of digits less than or equal to sum of digits. %C A254622 See A254621 for the numbers with this property. - _Wolfdieter Lang_, Feb 23 2015 %H A254622 David A. Corneth, <a href="/A254622/b254622.txt">Table of n, a(n) for n = 1..2000</a> %Y A254622 Cf. A052382, A062996, A254621. %K A254622 nonn,base %O A254622 1,1 %A A254622 _David A. Corneth_, Feb 03 2015