%I #5 Mar 30 2012 18:58:16
%S 0,0,13,29,91,123,171,219,315,363,459,539,667,763,907,971,1163,1291,
%T 1435,1579,1835,1931,2171,2347,2539,2699,2987,3131,3515,3739,3931,
%U 4171,4555,4715,5099,5291,5675,5963,6395,6587,6971
%N (A209988)/4.
%C See A210000 for a guide to related sequences.
%t (See the Mathematica section at A209981.)
%Y Cf. A210000.
%K nonn
%O 0,3
%A _Clark Kimberling_, Mar 17 2012