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 A367615 #19 Jan 09 2025 12:38:34
%S A367615 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,19,20,21,22,23,24,25,26,28,
%T A367615 29,30,31,32,33,34,35,37,38,39,40,41,42,43,44,46,47,48,49,50,51,52,53,
%U A367615 55,56,57,58,59,60,61,62,64,65,66,67,68,69,70,71,73,74,75
%N A367615 Numbers that have a comma-successor.
%C A367615 This is the complement to A367341.
%C A367615 The actual successors are given in A367340.
%C A367615 See A367338 for definition.
%H A367615 Michael S. Branicky, <a href="/A367615/b367615.txt">Table of n, a(n) for n = 1..10000</a>
%H A367615 Eric Angelini, Michael S. Branicky, Giovanni Resta, N. J. A. Sloane, and David W. Wilson, The Comma Sequence: A Simple Sequence With Bizarre Properties, <a href="http://arxiv.org/abs/2401.14346">arXiv:2401.14346</a>, Fibonacci Quarterly 62:3 (2024), 215-232.
%H A367615 Eric Angelini, Michael S. Branicky, Giovanni Resta, N. J. A. Sloane, and David W. Wilson, <a href="/A121805/a121805_1.pdf">The Comma Sequence: A Simple Sequence With Bizarre Properties</a>, Local copy.
%H A367615 N. J. A. Sloane, <a href="https://www.youtube.com/watch?v=_EHAdf6izPI">Eric Angelini's Comma Sequence</a>, Experimental Math Seminar, Rutgers Univ., January 18, 2024, Youtube video; <a href="https://sites.math.rutgers.edu/~zeilberg/expmath/sloane2024.pdf">Slides</a>
%t A367615 fQ[n_]:=Module[{k=n+10*Last[IntegerDigits[n]]+Range[9]},Select[k,#-n==FromDigits[{Last[IntegerDigits[n]],First[IntegerDigits[#]]}]&]]!={};
%t A367615 Select[Range[75],fQ[#]&] (* _Ivan N. Ianakiev_, Dec 18 2023 *)
%Y A367615 Cf. A121805, A367338, A367340, A367341
%K A367615 nonn,base
%O A367615 1,2
%A A367615 _N. J. A. Sloane_, Dec 18 2023
%E A367615 More terms from _Michael S. Branicky_, Dec 18 2023