A165608 - OEIS

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A165608

Numbers of the form 4n+3 for which Sum_{i=1..u} J(i,4n+3) is never negative for any u in range [1,2n+1], but obtains at least one value zero, where J(i,m) is the Jacobi symbol.

11, 27, 35, 59, 63, 75, 83, 103, 131, 135, 171, 175, 243, 251, 279, 295, 299, 319, 343, 351, 363, 371, 375, 395, 415, 419, 495, 539, 563, 567, 575, 607, 635, 659, 675, 703, 711, 731, 735, 755, 783, 867, 875, 895, 899, 903, 927, 943, 971, 999, 1063, 1067

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OFFSET

1,1

COMMENTS

Setwise difference of A095100 and A165469.

LINKS

Table of n, a(n) for n=1..52.

CROSSREFS

a(n) = A004767(A165607(n)). Subset of A095100. A165977 gives the primes only. Cf. A165603.

Sequence in context: A368930 A029492 A185451 * A152574 A035701 A106839

Adjacent sequences: A165605 A165606 A165607 * A165609 A165610 A165611

KEYWORD

nonn

AUTHOR

Antti Karttunen, Oct 06 2009

EXTENSIONS

Definition edited by Jonathan Sondow, Sep 27 2011

STATUS

approved