%I #9 Apr 09 2014 10:15:19
%S 2,5,10,16,23,32,42,53,65,78,93,109,126,144,163,183,205,228,252,277,
%T 303,330,358,388,419,451,484,518,553,589,626,665,705,746,788,831,875,
%U 920,966,1013,1061,1111,1162,1214,1267,1321,1376,1432,1489,1547,1606,1666
%N a(1)=2; a(2)=5. a(n) = a(n-1) + (n-th positive integer which does not occur in sequence A131937).
%e A131937: 1,4,8,14,21,29,...
%e Positive integers not in A131937: 2,3,5,6,7,9,10,11,...
%e So A131938(8) = A131938(7) + 11 = 53.
%Y Cf. A131937.
%K nonn
%O 1,1
%A _Leroy Quet_, Jul 30 2007
%E More terms from _Farideh Firoozbakht_, Aug 07 2007
%E a(51)-a(52) from _Ray Chandler_, Mar 06 2010