id:A068714 - OEIS Search Results

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Primes formed from a concatenation of 2 and 3^k for some k.

+0
3

23, 29, 227, 281, 2243, 2729, 26561, 219683, 24782969, 210460353203, 2282429536481, 27625597484987, 250031545098999707, 279766443076872509863361, 2239299329230617529590083 (list; graph; listen)

	OFFSET	`0,1`
	EXAMPLE	`2243 is a member as it is a concatenation of 2 and 243 = 3^5.`
	CROSSREFS	`Cf. A068712.` `Sequence in context: A110584 A115396 A029541 this_sequence A036267 A107934 A155107` `Adjacent sequences: A068711 A068712 A068713 this_sequence A068715 A068716 A068717`
	KEYWORD	`nonn,base`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 05 2002`
	EXTENSIONS	`More terms from Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Mar 17 2002`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

AT&T Labs Research