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A115663 Prime numbers whose digit reversal is a brilliant number (A078972). 1
41, 53, 109, 137, 163, 193, 307, 317, 349, 397, 773, 977, 997, 1051, 1093, 1171, 1297, 1307, 1451, 1553, 1621, 1721, 1801, 1861, 1951, 3001, 3041, 3323, 3331, 3361, 3461, 3491, 3593, 3631, 3671, 3673, 3701, 3923, 7001, 7151, 7213, 7283 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..42.

EXAMPLE

997 is prime and 799=17*47 is brilliant.

MATHEMATICA

brilQ[n_]:=Module[{fin=FactorInteger[n]}, Total[Transpose[fin][[2]]]==2 && Length[Union[IntegerLength[Transpose[fin][[1]]]]]==1]; Select[Prime[ Range[1000]], brilQ[FromDigits[Reverse[IntegerDigits[#]]]]&] (* Harvey P. Dale, Jun 08 2013 *)

CROSSREFS

Cf. A078972, A115664.

Sequence in context: A168348 A052032 A176924 * A282353 A118636 A116345

Adjacent sequences:  A115660 A115661 A115662 * A115664 A115665 A115666

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Jan 31 2006

STATUS

approved

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Last modified September 21 08:38 EDT 2020. Contains 337268 sequences. (Running on oeis4.)