id:A117858 - OEIS Search Results

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Number of palindromes of length n (in base 6).

+0
1

5, 5, 30, 30, 180, 180, 1080, 1080, 6480, 6480, 38880, 38880 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n) = 5*6^floor((n-1)/2)`
	CROSSREFS	`Cf. A050683.` `Sequence in context: A130220 A081847 A020551 this_sequence A014434 A106830 A067047` `Adjacent sequences: A117855 A117856 A117857 this_sequence A117859 A117860 A117861`
	KEYWORD	`nonn`
	AUTHOR	`Martin Renner (martin.renner(AT)gmx.net), May 02 2006`

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