%I
%S 2,5,5,11,9,9,13,23,17,14,21,20,25,21,20,47,33,26,37,35,27,33,45,39,
%T 49,38,53,35,57,45,61,95,44,50,49,44,73,57,51,55,81,62,85,76,54,69,93,
%U 80,97,74,68,91,105,81,65,104,75,86,117,75
%N a(n) = smallest (n+k) such that n divides the sum {(n+1)+ (n+2) + ... (n+k)} or n divides kn + k(k+1)/2.
%e a(4) = 11 as 4 divides 5+6+7+8+9+10+11 and not a smaller sum.
%Y Cf. A081468, A081469, A081470, A081471, A081472.
%K nonn
%O 1,1
%A _Amarnath Murthy_, Mar 23 2003
%E More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003
