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A038878 Primes p such that 7 is a square mod p. 1
2, 3, 7, 19, 29, 31, 37, 47, 53, 59, 83, 103, 109, 113, 131, 137, 139, 149, 167, 193, 197, 199, 223, 227, 233, 251, 271, 277, 281, 283, 307, 311, 317, 337, 367, 373, 383, 389, 401, 419, 421, 439, 449, 457, 467 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Also, only entries p=1 (mod 4) of the sequence are squares mod 7 (from the quadratic reciprocity law). - Lekraj Beedassy (blekraj(AT)yahoo.com), Jul 21 2004

CROSSREFS

Sequence in context: A178954 A138111 A078373 * A040112 A074855 A038935

Adjacent sequences:  A038875 A038876 A038877 * A038879 A038880 A038881

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 15 03:33 EST 2012. Contains 205694 sequences.