id:A068681 - OEIS Search Results

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Primes formed by the concatenation n, n-2, n.

+0
2

313, 757, 131113, 171517, 312931, 393739, 474547, 494749, 575557, 939193, 111109111, 127125127, 139137139, 147145147, 151149151, 169167169, 189187189, 213211213, 217215217, 227225227, 237235237, 239237239, 247245247, 253251253, 269267269, 331329331, 333331333, 353351353, 363361363, 377375377, 387385387, 389387389, 393391393 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`111109111 is a term as it is the concatenation of 111, 109 and 111.`
	CROSSREFS	`Cf. A068680.` `Sequence in context: A087364 A090287 A090514 this_sequence A082436 A108845 A123059` `Adjacent sequences: A068678 A068679 A068680 this_sequence A068682 A068683 A068684`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 02 2002`
	EXTENSIONS	`More terms from Eli McGowan (ejmcgowa(AT)mail.lakeheadu.ca), Apr 11 2002`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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