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A063498
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Atoms in cluster of n layers around C_60.
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1
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0, 32, 104, 236, 448, 760, 1192, 1764, 2496, 3408, 4520, 5852, 7424, 9256, 11368, 13780, 16512, 19584, 23016, 26828, 31040, 35672, 40744, 46276, 52288, 58800, 65832, 73404, 81536, 90248, 99560, 109492, 120064, 131296, 143208, 155820
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OFFSET
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0,2
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REFERENCES
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T. P. Martin, Shells of atoms, Phys. Reports, 273 (1996), 199-241, eq. (17).
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LINKS
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FORMULA
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10*n^3/3+10*n^2+56*n/3.
G.f.: 4*x*(8-6*x+3*x^2)/(1-x)^4. [Colin Barker, Apr 20 2012]
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PROG
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(PARI) { for (n=0, 1000, write("b063498.txt", n, " ", 10*n^2 + (10*n^3 + 56*n)/3) ) } [Harry J. Smith, Aug 23 2009]
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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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STATUS
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approved
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