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A100151 Structured snub dodecahedral numbers. 3

%I #13 Sep 08 2022 08:45:15

%S 1,60,286,788,1675,3056,5040,7736,11253,15700,21186,27820,35711,44968,

%T 55700,68016,82025,97836,115558,135300,157171,181280,207736,236648,

%U 268125,302276,339210,379036,421863,467800,516956,569440

%N Structured snub dodecahedral numbers.

%H Vincenzo Librandi, <a href="/A100151/b100151.txt">Table of n, a(n) for n = 1..5000</a>

%F a(n) = (1/6)*n*(109*n^2 - 153*n + 50).

%F G.f.: x*(1 + 56*x + 52*x^2)/(1-x)^4. - _Colin Barker_, Jan 19 2012

%o (Magma) [(1/6)*(109*n^3-153*n^2+50*n): n in [1..40]]; // _Vincenzo Librandi_, Jul 19 2011

%Y Cf. A100150, A100152 for adjacent structured Archimedean solids; and A100145 for more on structured polyhedral numbers.

%K easy,nonn

%O 1,2

%A James A. Record (james.record(AT)gmail.com), Nov 07 2004

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Last modified August 19 09:32 EDT 2024. Contains 375284 sequences. (Running on oeis4.)