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A019564
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Coordination sequence for C_8 lattice.
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6
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1, 128, 2816, 27008, 157184, 658048, 2187520, 6140800, 15158272, 33830016, 69629696, 134110592, 244396544, 425000576, 710003968, 1145628544, 1793234944, 2732779648, 4066763520, 5924704640
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OFFSET
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0,2
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LINKS
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FORMULA
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G.f.: (1+120*x+1820*x^2+8008*x^3+12870*x^4+8008*x^5+1820*x^6+120*x^7+x^8)/(1-x)^8 = 1+128*x* (x+1)^2*(x^2+6*x+1)^2/(x-1)^8.
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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mbaake(AT)sunelc3.tphys.physik.uni-tuebingen.de (Michael Baake)
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STATUS
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approved
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