%I #4 Dec 05 2013 19:56:02
%S 1,2,3,5,8,13,18,24,31,39,49,59,71,83,96,110,125,141,158,176,195,215,
%T 236,258,281,305,330,356,383,411,440,470,501,533,566,600,635,671,708,
%U 746,785,825,866,908,951,995,1040,1086,1133,1181,1230,1280,1331,1383
%N First column of A082827.
%F For 13 <= n < 145, a(n) = (n^2 - 3n + 12)/2. For 145 <= n < 17975, a(n) = (n^2 - 3n + 14)/2. - _David Wasserman_, Oct 07 2004
%Y Cf. A082827, A082828.
%K base,easy,nonn
%O 1,2
%A _Amarnath Murthy_, Apr 22 2003
%E Corrected and extended by _David Wasserman_, Oct 07 2004