%I #10 Oct 21 2021 07:40:15
%S 1,2,3,4,5,10,7,8,9,10,11,20,13,24,52,16,17,18,19,20,53,22,23,40,25,
%T 48,27,28,29,30,31,32,33,34,35,116,37,72,172,40,41,42,43,44,371,46,47,
%U 48,49,50,51,52,53,54,55,144,2662,104,59,60,61,62,161,64,155,66,67,68,69,70,71,136,73,136
%N a(n) = A348409(n) - A348246(n) + 1.
%C This is the length of time from when A307720 produces the first n to when it produces the final (n-th) n. Cf. A307730. By definition, a(n) >= n.
%H N. J. A. Sloane, <a href="/A348249/b348249.txt">Table of n, a(n) for n = 1..10000</a>
%Y Cf. A307720, A307730, A348245, A348246, A348409.
%Y Records: A348255, A348256.
%K nonn
%O 1,2
%A _Rémy Sigrist_ and _N. J. A. Sloane_, Oct 20 2021