id:A030996 - OEIS Search Results

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Concatenation of n consecutive primes starting with the prime a(n) is a prime.

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2

2, 2, 5, 2, 7, 113, 29, 107, 211, 691, 23, 11, 5, 71, 277, 181, 13, 307, 43, 223, 43, 167, 31, 23, 151, 29, 67, 383, 19, 53, 53, 277, 541, 37, 103, 127, 947, 79, 4409, 1699, 13, 73, 31, 107, 751, 1187, 1069, 859, 67, 229, 293, 47, 1303, 2909, 1319 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Cf. A030997.` `Sequence in context: A100030 A029603 A025124 this_sequence A051612 A083456 A068058` `Adjacent sequences: A030993 A030994 A030995 this_sequence A030997 A030998 A030999`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Warut Roonguthai (warut822(AT)yahoo.com)`

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

AT&T Labs Research