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A121054 Sizes of successive clusters in f.c.c. lattice centered at a tetrahedral hole. 2
4, 16, 28, 44, 68, 80, 104, 140, 152, 180, 216, 240, 276, 312, 336, 360, 420, 456, 484, 532, 544, 604, 664, 688, 736, 784, 820, 868, 928, 952, 1004, 1088, 1136, 1160, 1220, 1256, 1304, 1400, 1436, 1508, 1556, 1592, 1664, 1724, 1772, 1824, 1920, 1956, 2016, 2112 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

REFERENCES

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.

LINKS

Table of n, a(n) for n=0..49.

CROSSREFS

Partial sums of A005886. Equals 2*A121055.

Sequence in context: A228167 A017569 A161335 * A273368 A209979 A294629

Adjacent sequences:  A121051 A121052 A121053 * A121055 A121056 A121057

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Aug 09 2006

STATUS

approved

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Last modified September 18 18:44 EDT 2019. Contains 327180 sequences. (Running on oeis4.)