cp's OEIS Frontend

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.

A384385 Smallest number with shortest addition-multiplication-composition chain of length n, starting with 1 and x, i.e., smallest k such that A384384(k) = n.

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%I A384385 #7 Jun 09 2025 10:38:32
%S A384385 1,2,3,5,7,13,23,95
%N A384385 Smallest number with shortest addition-multiplication-composition chain of length n, starting with 1 and x, i.e., smallest k such that A384384(k) = n.
%C A384385 See A384383 and A384384 for details.
%Y A384385 Cf. A383001 (addition and multiplication), A384383, A384384, A384386, A384484 (addition and composition).
%K A384385 nonn,more
%O A384385 0,2
%A A384385 _Pontus von Brömssen_, Jun 01 2025