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A201788
Primes of the form 5n^2 - 7.
1
13, 73, 173, 313, 1613, 1993, 3373, 4493, 5113, 6473, 7213, 7993, 13513, 19213, 21773, 25913, 33613, 36973, 38713, 40493, 46073, 49993, 58313, 60493, 67273, 71993, 74413, 76873, 95213, 115513, 131213, 154873, 172973, 176713, 204013
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OFFSET
1,1
LINKS
Vincenzo Librandi,
Table of n, a(n) for n = 1..5000
MATHEMATICA
Select[Table[5n^2-7, {n, 2, 1000}], PrimeQ]
PROG
(Magma) [a: n in [2..400] | IsPrime(a) where a is 5*n^2-7];
CROSSREFS
Sequence in context:
A097402
A383907
A255416
*
A139873
A142787
A084218
Adjacent sequences:
A201785
A201786
A201787
*
A201789
A201790
A201791
KEYWORD
nonn
,
easy
AUTHOR
Vincenzo Librandi
, Dec 05 2011
STATUS
approved