id:A134816 - OEIS Search Results

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Padovan's spiral numbers.

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2

1, 1, 1, 2, 2, 3, 4, 5, 7, 9, 12, 16, 21, 28, 37, 49, 65, 86, 114, 151, 200, 265, 351, 465, 616, 816, 1081, 1432, 1897, 2513, 3329, 4410, 5842, 7739, 10252, 13581, 17991, 23833, 31572, 41824, 55405, 73396, 97229, 128801, 170625, 226030 (list; graph; listen)

	OFFSET	`1,4`
	COMMENT	`Numbers that are the side lengths of the equilateral triangles needed to draw the spiral which follow the Padovan sequence. This sequence appears to be essentially identical to one or more sequences already in the OEIS. See: A000931, A078027, A124745, A133034.`
	FORMULA	`a(n)=A000931(n+4).`
	EXAMPLE	`a(6)=3 because 6+4=10 and A000931(10)=3.`
	CROSSREFS	`Sequence in context: A124745 A133034 A000931 this_sequence A078027 A072493 A064324` `Adjacent sequences: A134813 A134814 A134815 this_sequence A134817 A134818 A134819`
	KEYWORD	`easy,nonn`
	AUTHOR	`Omar E. Pol (info(AT)polprimos.com), Nov 13 2007`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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