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A100163
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Structured disdyakis dodecahedral numbers (vertex structure 5).
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3
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1, 26, 119, 324, 685, 1246, 2051, 3144, 4569, 6370, 8591, 11276, 14469, 18214, 22555, 27536, 33201, 39594, 46759, 54740, 63581, 73326, 84019, 95704, 108425, 122226, 137151, 153244, 170549, 189110, 208971, 230176
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OFFSET
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1,2
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LINKS
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FORMULA
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a(n) = (1/6)*(44*n^3 - 60*n^2 + 22*n).
G.f.: x*(1 + 22*x + 21*x^2)/(1-x)^4. - Colin Barker, Jan 19 2012
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PROG
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(Magma) [(1/6)*(44*n^3-60*n^2+22*n): n in [1..40]]; // Vincenzo Librandi, Jul 25 2011
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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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James A. Record (james.record(AT)gmail.com), Nov 07 2004
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STATUS
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approved
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