A165469 Numbers 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, 7, 15, 23, 31, 39, 47, 55, 71, 79, 87, 95, 111, 119, 143, 151, 159, 167, 183, 191, 199, 215, 231, 239, 255, 263, 271, 287, 303, 311, 327, 335, 359, 383, 391, 399, 407, 431, 439, 447, 455, 471, 479, 503, 511, 519, 527, 535, 551, 559, 591, 599, 615, 623

Offset

1,1

Links

Table of n, a(n) for n=1..54.

Crossrefs

a(n) = A004767(A165468(n)). Setwise difference of A095100 and A165608. A165580 gives the primes in this sequence.

Sequence in context: A103007 A077790 A322971 * A160160 A192122 A069119

Adjacent sequences: A165466 A165467 A165468 * A165470 A165471 A165472

Keyword

nonn

Author

Antti Karttunen, Oct 06 2009

Status

approved