id:A117776 - OEIS Search Results

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Total number of palindromic primes in base 3 with n digits.

+0
1

1, 0, 2, 0, 3, 0, 12, 0, 8, 0, 47, 0, 106, 0 (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: A089780 A067165 A079981 this_sequence A137448 A035165 A079133` `Adjacent sequences: A117773 A117774 A117775 this_sequence A117777 A117778 A117779`
	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.