id:A056730 - OEIS Search Results

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Palindromic primes with just two distinct digits.

+0
2

101, 131, 151, 181, 191, 313, 353, 373, 383, 727, 757, 787, 797, 919, 929, 11311, 11411, 13331, 15551, 16661, 18181, 19991, 32323, 33533, 35353, 72227, 72727, 74747, 75557, 76667, 77377, 77477, 77977, 78787, 78887, 79997, 94949, 95959 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`Select[ Range[ 1, 3 10^6, 2 ], PrimeQ[ # ] && Length[ Union[ RealDigits[ # ][ [ 1 ] ] ] ] == 2 && RealDigits[ # ][ [ 1 ] ] == Reverse[ RealDigits[ # ][ [ 1 ] ] ] & ]`
	CROSSREFS	`Sequence in context: A060916 A075793 A052086 this_sequence A077798 A089360 A056728` `Adjacent sequences: A056727 A056728 A056729 this_sequence A056731 A056732 A056733`
	KEYWORD	`nonn,base`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 11 2000`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research