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 A376297 #6 Sep 20 2024 06:07:47 %S A376297 12,13,14,15,16,17,18,19,23,24,25,26,27,28,29,34,35,36,37,38,39,45,46, %T A376297 47,48,49,56,57,58,59,67,68,69,78,79,89,101,102,103,104,105,106,107, %U A376297 108,109,111,120,130,140,150,160,170,180,190,202,203,204,205,206,207,208,209,210,220,222,230,240,250,260,270,280,290,330,333,340,350,360,370,380,390 %N A376297 Smallest terms which are the concatenation of two unambiguous distinct integers > 0. %C A376297 The sequence is infinite as it can always be extended with the smallest integer <1(n times 0)1> not yet present. %e A376297 10 is not in the sequence because 0 is not > 0. %e A376297 11 is not in the sequence because 1 and 1 are not distinct. %e A376297 21 is not in the sequence because 12 is already in it. %e A376297 101 is in the sequence because it can be unambiguously split into the two distinct integers 10 and 1. %e A376297 110 is not in the sequence because 101 is already in it. %e A376297 111 is in the sequence because it can be split into the two distinct integers 1 and 11 (though in two ways). %K A376297 nonn,base %O A376297 1,1 %A A376297 _Eric Angelini_, Sep 19 2024