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A032713 Numbers n such that n prefixed by '5' and followed by '3' is prime. 0
0, 2, 6, 9, 11, 15, 23, 27, 30, 32, 33, 39, 41, 44, 48, 50, 56, 57, 62, 65, 68, 69, 74, 78, 81, 84, 90, 92, 95, 104, 113, 119, 120, 126, 128, 134, 138, 141, 147, 150, 156, 159, 161, 167, 168, 171, 180, 185, 189, 191, 197, 210, 215, 216, 218, 222, 225, 231 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..58.

MATHEMATICA

Select[Range[0, 250], PrimeQ[FromDigits[Join[{5}, IntegerDigits[#], {3}]]]&] (* Harvey P. Dale, Mar 28 2013 *)

CROSSREFS

Sequence in context: A191252 A026348 A187483 * A257475 A086939 A174682

Adjacent sequences:  A032710 A032711 A032712 * A032714 A032715 A032716

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, May 15 1998

STATUS

approved

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Last modified July 12 08:23 EDT 2020. Contains 335657 sequences. (Running on oeis4.)