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.

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.

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%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