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A019561
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Coordination sequence for C_5 lattice.
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2
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1, 50, 450, 1970, 5890, 14002, 28610, 52530, 89090, 142130, 216002, 315570, 446210, 613810, 824770, 1086002, 1404930, 1789490, 2248130, 2789810, 3424002, 4160690, 5010370, 5984050, 7093250, 8350002
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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REFERENCES
| R. Bacher, P. de la Harpe and B. Venkov, Series de croissance et series d'Ehrhart associees aux reseaux de racines, C. R. Acad. Sci. Paris, 325 (Series 1) (1997), 1137-1142.
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FORMULA
| G.f.: (1+45*x+210*x^2+210*x^3+45*x^4+x^5)/(1-x)^5.
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CROSSREFS
| Sequence in context: A184556 A031420 A111341 * A164757 A189415 A128954
Adjacent sequences: A019558 A019559 A019560 * A019562 A019563 A019564
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KEYWORD
| nonn
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AUTHOR
| mbaake(AT)sunelc3.tphys.physik.uni-tuebingen.de (Michael Baake)
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