login
Smallest number with shortest addition-composition chain of length n, starting with 1 and x, i.e., smallest k such that A384483(k) = n.
4

%I #7 Jun 09 2025 10:38:08

%S 1,2,3,5,7,11,19,70,167,1239,7123

%N Smallest number with shortest addition-composition chain of length n, starting with 1 and x, i.e., smallest k such that A384483(k) = n.

%C See A384480 and A384483 for details.

%Y Cf. A003064 (addition only), A383001 (addition and multiplication), A384385 (addition, multiplication, and composition), A384480, A384481, A384483, A384485.

%K nonn,more

%O 0,2

%A _Pontus von Brömssen_, Jun 02 2025