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A177120
Primes of the form (5*10^n+3).
1
53, 503, 5003, 500000003, 5000000000000000003, 500000000000000000003, 50000000000000000000000000000003, 5000000000000000000000000000000000000000003
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OFFSET
1,1
LINKS
Vincenzo Librandi,
Table of n, a(n) for n = 1..13
Makoto Kamada,
Prime numbers of the form 500...003
.
MATHEMATICA
Select[5 10^Range[80] + 3, PrimeQ] (*
Vincenzo Librandi
, May 11 2013 *)
PROG
(Magma)[ a: n in [0..250]|IsPrime(a) where a is 5*10^n+3]
CROSSREFS
Cf.
A096254
.
Sequence in context:
A142209
A322043
A293089
*
A165555
A201855
A112749
Adjacent sequences:
A177117
A177118
A177119
*
A177121
A177122
A177123
KEYWORD
nonn
AUTHOR
Vincenzo Librandi
, Dec 10 2010
STATUS
approved
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Last modified August 19 22:28 EDT 2024. Contains 375310 sequences. (Running on oeis4.)