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A136186 Primes whose decimal and binary reversal are both prime. 1
3, 5, 7, 11, 13, 17, 31, 37, 71, 73, 97, 101, 107, 113, 131, 151, 167, 181, 199, 313, 337, 353, 359, 373, 383, 701, 709, 727, 739, 757, 797, 907, 937, 941, 953, 967, 1033, 1091, 1109, 1153, 1181, 1193, 1201, 1217, 1229, 1259, 1439, 1453, 1471, 1487, 1619, 1669 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..52.

EXAMPLE

337 = 101010001 base 2, reverse the sequence of ones and zeros: 100010101 base 2 = 277. 337, 733 and 277 are all prime.

CROSSREFS

Cf. A007500, A074832.

Sequence in context: A206864 A155801 A228118 * A023210 A153601 A153602

Adjacent sequences:  A136183 A136184 A136185 * A136187 A136188 A136189

KEYWORD

base,nonn

AUTHOR

Harry J. Smith, Dec 19 2007

STATUS

approved

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Last modified October 2 08:32 EDT 2014. Contains 247538 sequences.