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 A090908 #12 Dec 19 2024 16:18:22 %S A090908 1,3,4,6,8,9,11,12,14,16,17,19,21,22,24,25,27,29,30,32,33,35,37,38,40, %T A090908 42,43,45,46,48,50,51,53,55,56,58,59,61,63,64,66,67,69,71,72,74,76,77, %U A090908 79,80,82,84,85,87,88,90,92,93,95,97,98,100,101,103,105,106,108,110,111 %N A090908 Terms a(k) of A073869 for which a(k) is distinct from a(k-1). %C A090908 Is this the same as A000201? %C A090908 The answer is yes: see A090909. - _Michel Dekking_, Dec 19 2024 %H A090908 F. M. Dekking, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL26/Dekking2/dek9.html">On Hofstadter's G-sequence</a>, Journal of Integer Sequences 26 (2023), Article 23.9.2, 1-11. %F A090908 See A000201. %e A090908 A073869 = A005206 = 0,1,1,2,3,3,4,4,5,6,6,... The pair (1,2) occurs at k = 3. %Y A090908 Cf. A002251, A005206, A073869, A090909, A000201. %K A090908 nonn %O A090908 1,2 %A A090908 _Amarnath Murthy_, Dec 14 2003 %E A090908 More terms from _R. J. Mathar_, Sep 29 2017 %E A090908 Name corrected by _Michel Dekking_, Dec 19 2024