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 A288355 #8 Jun 11 2017 12:39:54 %S A288355 12721,12812,13171,13181,13191,13656,13676,13678,13767,13787,13789, %T A288355 13876,13878,13896,13898,13987,13989,14181,14191,14767,14787,14789, %U A288355 14878,14898,14987,14989,15186,15191,15197,15351,15751,15782,15791,15795,15816,15854,15856,15861,15865 %N A288355 Strings of 5 digits from 1...9, such that no formula using the single digits in the given order exists that evaluates to 0. %C A288355 For definitions and comments see A288350. The b-file provides all A288351(5)=1014 sequence terms. %H A288355 Hugo Pfoertner, <a href="/A288355/b288355.txt">Table of n, a(n) for n = 1..1014</a> %Y A288355 Cf. A288350, A288351, A288353, A288354, A288356. %K A288355 nonn,base,fini,full %O A288355 1,1 %A A288355 _Hugo Pfoertner_, Jun 08 2017