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 A100166 Structured deltoidal hexacontahedral numbers (vertex structure 9). 3
 1, 62, 295, 812, 1725, 3146, 5187, 7960, 11577, 16150, 21791, 28612, 36725, 46242, 57275, 69936, 84337, 100590, 118807, 139100, 161581, 186362, 213555, 243272, 275625, 310726, 348687, 389620, 433637, 480850, 531371, 585312 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..5000 FORMULA a(n) = (1/6)*(112*n^3 - 156*n^2 + 50*n). G.f.: x*(1 + 58*x + 53*x^2)/(1-x)^4. - Colin Barker, Jan 19 2012 PROG (MAGMA) [(1/6)*(112*n^3-156*n^2+50*n): n in [1..40]]; // Vincenzo Librandi, Jul 26 2011 CROSSREFS Cf. A100158, A100159 = alternate vertices; A100145 for more on structured numbers. Sequence in context: A158067 A045220 A100158 * A100159 A100160 A223072 Adjacent sequences:  A100163 A100164 A100165 * A100167 A100168 A100169 KEYWORD nonn,easy AUTHOR James A. Record (james.record(AT)gmail.com), Nov 07 2004 STATUS approved

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Last modified October 16 06:10 EDT 2019. Contains 328046 sequences. (Running on oeis4.)