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A032627
Primes that are concatenations of n with n + 4.
0
37, 59, 1721, 2731, 3539, 3943, 4549, 4751, 6367, 6569, 8387, 9397, 99103, 113117, 123127, 147151, 149153, 173177, 185189, 203207, 209213, 213217, 219223, 227231, 239243, 249253, 255259, 263267, 267271, 285289, 287291
OFFSET
1,1
CROSSREFS
Sequence in context: A141851 A105461 A288617 * A357955 A168006 A354156
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, May 15 1998
EXTENSIONS
Edited by Charles R Greathouse IV, Apr 28 2010
STATUS
approved