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A003629 Primes p = +/- 3 (mod 8), or, primes p such that 2 is not a square mod p.
(Formerly M2472)
13
3, 5, 11, 13, 19, 29, 37, 43, 53, 59, 61, 67, 83, 101, 107, 109, 131, 139, 149, 157, 163, 173, 179, 181, 197, 211, 227, 229, 251, 269, 277, 283, 293, 307, 317, 331, 347, 349, 373, 379, 389, 397, 419, 421, 443, 461, 467, 491, 499, 509, 523, 541, 547, 557, 563 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Complement of A038873 relative to A000040.

Also primes p such that p divides 2^((p-1)/2) + 1. - Cino Hilliard (hillcino368(AT)gmail.com), Sep 04 2004

Primes p such that p^2 mod 48 = 25, n>1. [From Gary Detlefs, Dec 29 2011]

REFERENCES

M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 870.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

T. D. Noe, Table of n, a(n) for n=1..1000

M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].

MAPLE

for n from 2 to 563 do if(ithprime(n)^2 mod 48 = 25) then print(ithprime(n)) fi od. [From Gary Detlefs, Dec 29 2011]

MATHEMATICA

Select[ Prime@Range[2, 105], JacobiSymbol[2, # ] == -1 &] (from Robert G. Wilson v (rgwv(at)rgwv.com), Dec 15 2005)

CROSSREFS

Cf. A000040, A038873.

Sequence in context: A059644 A059646 * A175865 A001122 A152871 A156221

Adjacent sequences:  A003626 A003627 A003628 * A003630 A003631 A003632

KEYWORD

nonn,easy

AUTHOR

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

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Last modified February 17 14:50 EST 2012. Contains 206050 sequences.