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A008533 Coordination sequence for {A_5}* lattice. 0
1, 12, 72, 272, 762, 1752, 3512, 6372, 10722, 17012, 25752, 37512, 52922, 72672, 97512, 128252, 165762, 210972, 264872, 328512, 403002, 489512, 589272, 703572, 833762, 981252, 1147512, 1334072 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

REFERENCES

M. O'Keeffe, Coordination sequences for lattices, Zeit. f. Krist., 210 (1995), 905-908.

MAPLE

[ seq( (5*k^4+15*k^2+4)/2, k=0..40) ];

CROSSREFS

Sequence in context: A199531 A188660 A047928 * A010024 A008414 A052181

Adjacent sequences:  A008530 A008531 A008532 * A008534 A008535 A008536

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 15 21:56 EST 2012. Contains 205860 sequences.