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A100182 Structured tetragonal anti-prism numbers. 2
1, 8, 28, 68, 135, 236, 378, 568, 813, 1120, 1496, 1948, 2483, 3108, 3830, 4656, 5593, 6648, 7828, 9140, 10591, 12188, 13938, 15848, 17925, 20176, 22608, 25228, 28043, 31060, 34286, 37728, 41393, 45288, 49420, 53796, 58423, 63308, 68458, 73880, 79581, 85568, 91848, 98428, 105315, 112516 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..10000

FORMULA

a(n)=(1/6)*(7*n^3-3*n^2+2*n) [Corrected by Luca Colucci, Mar 01 2011]

PROG

(MAGMA) [(1/6)*(7*n^3-3*n^2+2*n): n in [1..40]]; // Vincenzo Librandi, Aug 18 2011

CROSSREFS

Cf. A100185 - structured anti-prisms; A100145 for more on structured numbers.

Sequence in context: A134747 A083013 A028553 * A119515 A153976 A105636

Adjacent sequences:  A100179 A100180 A100181 * A100183 A100184 A100185

KEYWORD

easy,nonn

AUTHOR

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

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Last modified February 15 04:56 EST 2012. Contains 205694 sequences.