A026408 - OEIS

%I #8 Sep 27 2019 02:50:35

%S 1,2,2,3,5,4,5,6,7,8,6,8,11,14,13,11,13,11,17,13,18,20,23,17,20,26,24,

%T 25,27,28,25,21,28,27,35,30,37,24,26,37,34,39,41,39,36,22,26,48,46,47,

%U 48,33,34,52,46,31,32,38,59,50,36,31,33,55,64,66,67,68,65,58,59,72,65

%N a(n) = s(k), where, at the end of stage n when forming A026409, k is the greatest integer such that s(j) > 0 for all j < k.

%K nonn

%O 1,2

%A _Clark Kimberling_

%E More terms from _Sean A. Irvine_, Sep 26 2019