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 A384485 #6 Jun 09 2025 10:37:57 %S A384485 1,1,2,3,5,20,104,700,6779,95596 %N A384485 Number of integers with a shortest addition-composition chain of length n, starting with 1 and x, i.e., number of integers k with A384483(k) = n. %C A384485 See A384480 and A384483 for details. %Y A384485 Cf. A003065 (addition only), A383002 (addition and multiplication), A384386 (addition, multiplication, and composition), A384480, A384482, A384483, A384484. %K A384485 nonn,more %O A384485 0,3 %A A384485 _Pontus von Brömssen_, Jun 02 2025