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A010024 Coordination sequence for squashed {D_5}* lattice, perhaps the smallest example of a "non-superficial" lattice. 1
1, 12, 72, 292, 862, 2052, 4212, 7772, 13242, 21212, 32352, 47412, 67222, 92692, 124812, 164652, 213362, 272172, 342392, 425412, 522702, 635812, 766372, 916092, 1086762, 1280252, 1498512, 1743572 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

LINKS

T. D. Noe, Table of n, a(n) for n=0..1000

J. H. Conway and N. J. A. Sloane, Low-Dimensional Lattices VII: Coordination Sequences, Proc. Royal Soc. London, A453 (1997), 2369-2389 (Abstract, pdf, ps).

MAPLE

10/3*n^4-5/3*n^3+20/3*n^2+5/3*n+2;

CROSSREFS

Sequence in context: A188660 A047928 A008533 * A008414 A052181 A118979

Adjacent sequences:  A010021 A010022 A010023 * A010025 A010026 A010027

KEYWORD

nonn

AUTHOR

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

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Last modified February 14 10:19 EST 2012. Contains 205614 sequences.