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A100151 Structured snub dodecahedral numbers. 3
1, 60, 286, 788, 1675, 3056, 5040, 7736, 11253, 15700, 21186, 27820, 35711, 44968, 55700, 68016, 82025, 97836, 115558, 135300, 157171, 181280, 207736, 236648, 268125, 302276, 339210, 379036, 421863, 467800, 516956, 569440 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..5000

FORMULA

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

G.f.: x*(1+56*x+52*x^2)/(1-x)^4. [Colin Barker, Jan 19 2012]

PROG

(MAGMA) [(1/6)*(109*n^3-153*n^2+50*n): n in [1..40]]; // Vincenzo Librandi, Jul 19 2011

CROSSREFS

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

Sequence in context: A160917 A100154 A100148 * A179811 A146750 A063497

Adjacent sequences:  A100148 A100149 A100150 * A100152 A100153 A100154

KEYWORD

easy,nonn

AUTHOR

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

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Last modified February 14 16:41 EST 2012. Contains 205635 sequences.