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A022150
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Coordination sequence for root lattice B_8.
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3
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1, 128, 3264, 34624, 216448, 954880, 3301952, 9556160, 24165120, 54993792, 115021760, 224533056, 413862016, 726758656, 1224437056, 1990370240, 3135895040, 4806690432, 7190192832, 10524011840
(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
| a(0) = 1; for n>0, a(n) = (3968*n^7 - 6720*n^6 + 35840*n^5 - 36960*n^4 + 60032*n^3 - 26880*n^2 + 11040*n)/315 . - DELEHAM Philippe (kolotoko(AT)wanadoo.fr), Feb 20 2004
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CROSSREFS
| Sequence in context: A096961 A019564 A128802 * A191899 A191495 A188303
Adjacent sequences: A022147 A022148 A022149 * A022151 A022152 A022153
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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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