%I A121054
%S A121054 4,16,28,44,68,80,104,140,152,180,216,240,276,312,336,360,420,456,484,
               532,
%T A121054 544,604,664,688,736,784,820,868,928,952,1004,1088,1136,1160,1220,1256,
%U A121054 1304,1400,1436,1508,1556,1592,1664,1724,1772,1824,1920,1956,2016,2112
%N A121054 Sizes of successive clusters in f.c.c. lattice centered at a tetrahedral 
               hole.
%D A121054 N. J. A. Sloane and B. K. Teo, Theta series and magic numbers for close-packed 
               spherical clusters, J. Chem. Phys. 83 (1985) 6520-6534.
%Y A121054 Partial sums of A005886. Equals 2*A121055.
%Y A121054 Sequence in context: A046361 A017569 A161335 this_sequence A160410 A031003 
               A036345
%Y A121054 Adjacent sequences: A121051 A121052 A121053 this_sequence A121055 A121056 
               A121057
%K A121054 nonn
%O A121054 0,1
%A A121054 N. J. A. Sloane (njas(AT)research.att.com), Aug 09 2006