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 A384663 #7 Jun 22 2025 18:24:50 %S A384663 1,2,3,4,6,8,10,12,13,14,15,16,18,19,20,21,22,24,25,26,28,29,30,32,33, %T A384663 35,37,39,41,42,43,44,46,48,50,51,53,55,56,57,58,60,62,63,65,66,67,68, %U A384663 69,71,72,74,76,77,78,80,81,83,84,85,86,87,89,90,91,92 %N A384663 Solution of the complementary equation b(n)=a(a(n))+a(n)+3 with a(1)=1; this is the sequence a. Sequence b is A384664. %H A384663 Clark Kimberling, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL10/Kimberling/kimberling26.html">Complementary equations</a>, J. Int. Seq. Article 07.1.4 (2007), 1-13. %e A384663 b(1) = a(a(1))+a(1)+3 = 1+1+3 = 5; %e A384663 b(2) = a(a(2))+a(2)+3 = 2+2+3 = 7; %e A384663 b(3) = a(a(3))+a(3)+3 = 3+3+3 = 9; %e A384663 b(4) = a(a(4))+a(4)+3 = 4+4+3 = 11; %e A384663 b(5) = a(a(5))+a(5)+3 = 6+8+3 = 17. %Y A384663 Cf. A136499, A136500, A384661, A384662, A384664. %K A384663 nonn %O A384663 1,2 %A A384663 _Clark Kimberling_, Jun 11 2025