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A100163 Structured disdyakis dodecahedral numbers (vertex structure 5). 3
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 (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)*(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

PROG

(MAGMA) [(1/6)*(44*n^3-60*n^2+22*n): n in [1..40]]; // Vincenzo Librandi, Jul 25 2011

CROSSREFS

Cf. A100161, A100162 = alternate vertices; A100145 for more on structured polyhedral numbers.

Sequence in context: A100161 A100162 A051729 * A183066 A124954 A126413

Adjacent sequences:  A100160 A100161 A100162 * A100164 A100165 A100166

KEYWORD

nonn,easy

AUTHOR

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

STATUS

approved

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Last modified April 29 19:06 EDT 2017. Contains 285613 sequences.