id:A090151 - OEIS Search Results

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Primes of the form identical digits preceded by a 3.

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3, 31, 37, 311, 311111, 31111111111, 311111111111, 377777777777, 31111111111111, 377777777777777777, 31111111111111111111111111111111111, 311111111111111111111111111111111111111111111111 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`Select[ FromDigits /@ Flatten[ Table[ PadRight[{3}, i, # ] & /@ {1, 2, 3, 4, 5, 6, 7, 8, 9}, {i, 2, 24}], 1], PrimeQ[ # ] &]`
	CROSSREFS	`Sequence in context: A141177 A046282 A045709 this_sequence A068331 A078330 A107210` `Adjacent sequences: A090148 A090149 A090150 this_sequence A090152 A090153 A090154`
	KEYWORD	`nonn,base`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 22 2003`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

AT&T Labs Research