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A100149 Structured small rhombicubeoctahedral numbers. 3
1, 24, 106, 284, 595, 1076, 1764, 2696, 3909, 5440, 7326, 9604, 12311, 15484, 19160, 23376, 28169, 33576, 39634, 46380, 53851, 62084, 71116, 80984, 91725, 103376, 115974, 129556, 144159, 159820, 176576, 194464 (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)*(37*n^3 - 45*n^2 + 14*n).

G.f.: x*(1 + 20*x + 16*x^2)/(1-x)^4. - Colin Barker, Jan 19 2012

PROG

(Magma) [(1/6)*(37*n^3-45*n^2+14*n): n in [1..40]]; // Vincenzo Librandi, Jul 19 2011

CROSSREFS

Cf. A100148, A100150 for adjacent structured Archimedean solids; and A100145 for more on structured polyhedral numbers.

Sequence in context: A044656 A011199 A213874 * A013980 A100150 A305950

Adjacent sequences: A100146 A100147 A100148 * A100150 A100151 A100152

KEYWORD

nonn,easy

AUTHOR

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

STATUS

approved

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Last modified December 3 11:24 EST 2022. Contains 358517 sequences. (Running on oeis4.)