A117775 - OEIS

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A117775

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

1, 1, 3, 3, 6, 6, 18, 18, 26, 26, 73, 73, 179, 179 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	COMMENTS	`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: A088528 A131942 A200905 * A021301 A016652 A008867` `Adjacent sequences: A117772 A117773 A117774 * A117776 A117777 A117778`
	KEYWORD	`nonn,base`
	AUTHOR	`Martin Renner (martin.renner(AT)gmx.net), Apr 15 2006`

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Last modified February 14 22:30 EST 2012. Contains 205678 sequences.