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 A359385 #15 Dec 31 2022 10:49:54 %S A359385 1,2,21,22,23,112,122,132,133,134,141,221,311,2112,2113,3111,21111, %T A359385 31113,31114,31124,31131,34111,41121,42111,43111,111121,111122,112111, %U A359385 112311,131111,211112,211113,1111311,1111312,3111311,3111312,4111131,4111132,4141111 %N A359385 The lexicographically earliest "Increasing Term Fractal Jump Sequence" that does not use the digit 0 in any terms. %C A359385 The rules of an "Increasing Term Fractal Jump Sequence" are described in A105647. %C A359385 The digit zero is omitted as it can create situations where the next term can require a 0 in the first digit. %H A359385 Tyler Busby, <a href="/A359385/b359385.txt">Table of n, a(n) for n = 1..5000</a> %e A359385 The sequence and the "kept" digits begin %e A359385 1, 2, 21, 22, 23, 112, 122, 132, 133, ... %e A359385 ^ ^ ^ ^ ^ ^ ^ ^ %e A359385 1 2 2 1 2 2 2 3 %Y A359385 Cf. A105647, A105395, A105396, A105397, A105398. %K A359385 nonn,base %O A359385 1,2 %A A359385 _Tyler Busby_, Dec 29 2022