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A066596
Primes which can be expressed as concatenation of powers of 5 and 0's.
0
5, 11, 101, 151, 251, 1051, 1151, 1511, 2551, 5011, 5051, 5101, 5501, 10111, 10151, 10501, 11251, 11551, 12511, 15101, 15511, 15551, 25111, 50051, 50101, 50111, 50551, 51001, 51151, 51511, 51551, 52501, 52511, 55001
OFFSET
1,1
EXAMPLE
251 is a term as it is a concatenation of 25 and 1 which are powers of 5.
CROSSREFS
Sequence in context: A123025 A053778 A030079 * A199325 A199305 A096473
KEYWORD
base,easy,nonn
AUTHOR
Amarnath Murthy, Dec 21 2001
EXTENSIONS
Corrected and extended by Christopher Lund (clund(AT)san.rr.com), Apr 14 2002
STATUS
approved