id:A117775 - OEIS Search Results

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Total number of palindromic primes in base 3 below 3^n.

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1, 1, 3, 3, 6, 6, 18, 18, 26, 26, 73, 73, 179, 179 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`Every palindrome with an even number of digits is divisible by 11 (in base 3) and therefore is composite (not prime). Hence there is no palindromic prime with an even number of digits.`
	LINKS	`Eric Weisstein: Palindromic Prime.`
	CROSSREFS	`Cf. A029971, A117698.` `Sequence in context: A026925 A088528 A131942 this_sequence A021301 A016652 A008867` `Adjacent sequences: A117772 A117773 A117774 this_sequence A117776 A117777 A117778`
	KEYWORD	`nonn`
	AUTHOR	`Martin Renner (martin.renner(AT)gmx.net), Apr 15 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.