A332554 - OEIS

%I #6 Feb 22 2020 10:19:32

%S 2,5,9,3,5,27,10,6,8,20,24,9,11,21,135,12,14,35,6,15,17,90,12,18,20,7,

%T 54,21,23,495,42,24,26,19,69,27,29,44,161,30,32,80,13,33,35,374,45,17,

%U 38,14,99,39,10,26,65,42,44,110,114,45,47,85,153,11

%N a(n) = (n*(n+1)/2)/Q(n) - (Q(n)+1)/2, where Q(n) = A332547(n).

%C _Michael J. Collins_ showed that this is an upper bound on A082183 (see Comments in A082183).

%K nonn

%O 2,1

%A _N. J. A. Sloane_, Feb 21 2020, following a suggestion from _Michael J. Collins_, Feb 19 2020