login
A136187
Primes whose decimal, binary and binary-decimal reversals are all prime.
1
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
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
Sequence in context: A335120 A153601 A153602 * A333207 A328489 A130122
KEYWORD
base,nonn
AUTHOR
Harry J. Smith, Dec 19 2007
STATUS
approved