id:A100185 - OEIS Search Results

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Structured meta-anti-prism numbers, the n-th number from a structured n-gonal anti-prism number sequence.

+0
9

1, 4, 19, 68, 185, 416, 819, 1464, 2433, 3820, 5731, 8284, 11609, 15848, 21155, 27696, 35649, 45204, 56563, 69940, 85561, 103664, 124499, 148328, 175425, 206076, 240579, 279244, 322393, 370360, 423491, 482144 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n)=(1/6)(3n^4-8n^3+9n^2+2*n)`
	EXAMPLE	`There are no 1- or 2-gonal anti-prisms, so 1 and (2n) are used as the first and second terms since all the sequences begin as such.`
	CROSSREFS	`Cf. A005900, A000447, A096000, A100178, A100157, A100185 - structured anti-prisms; A006484 for other structured meta numbers; and A100145 for more on structured numbers.` `Sequence in context: A098813 A055485 A000306 this_sequence A129019 A167247 A027208` `Adjacent sequences: A100182 A100183 A100184 this_sequence A100186 A100187 A100188`
	KEYWORD	`easy,nonn`
	AUTHOR	`James A. Record (james.record(AT)gmail.com)`

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Last modified March 18 15:35 EDT 2010. Contains 173617 sequences.

AT&T Labs Research