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A136187 Primes whose decimal, binary, and binary-decimal reversals are all prime. +0
2
3, 5, 7, 11, 13, 17, 31, 71, 73, 107, 113, 313, 701, 727, 739, 757, 797, 941, 1033, 1153, 1193, 1453, 1487, 1619, 1831, 1879, 1949, 3019, 3343, 3389, 3511, 3527, 3643, 3803, 3851, 9001, 9013, 9173, 9403, 9439, 9491, 9497, 9521, 9533, 9769, 10151, 10159 (list; graph; listen)
OFFSET

1,1

EXAMPLE

113 = 1110001 base 2, reverse the sequence of ones and zeros: 1000111 base 2 = 71. 113, 311, 71, and 17 are all prime.

CROSSREFS

Cf. A007500, A074832.

Adjacent sequences: A136184 A136185 A136186 this_sequence A136188 A136189 A136190

Sequence in context: A092729 A136186 A023210 this_sequence A130122 A046494 A026603

KEYWORD

base,nonn

AUTHOR

Harry J. Smith (hjsmithh(AT)sbcglobal.net), Dec 19 2007

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.


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