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A165580 Primes of the form 4n+3 for which Sum_{i=1..u} J(i,4n+3) is never zero for any u in range [1,(2n+1)], where J(i,m) is the Jacobi symbol. 3
3, 7, 23, 31, 47, 71, 79, 151, 167, 191, 199, 239, 263, 271, 311, 359, 383, 431, 439, 479, 503, 599, 647, 719, 743, 751, 839, 863, 887, 911, 919, 983, 991, 1031, 1039, 1151, 1223, 1231, 1279, 1319, 1399, 1439, 1471, 1487, 1511, 1559, 1583, 1759 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..48.

CROSSREFS

Setwise difference of A095102 and A165977. Also subset of A165469.

Sequence in context: A087309 A127781 A271918 * A187222 A122094 A260350

Adjacent sequences:  A165577 A165578 A165579 * A165581 A165582 A165583

KEYWORD

nonn

AUTHOR

Antti Karttunen, Oct 06 2009

STATUS

approved

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Last modified April 20 22:39 EDT 2021. Contains 343140 sequences. (Running on oeis4.)