A166057 Integers of the form 4n+3 for which Sum_{i=1..u} J(i,4n+3) obtains value zero exactly 7 times, when u ranges from 1 to (4n+3). Here J(i,k) is the Jacobi symbol.

415, 1639, 2359, 3995, 5191, 5459, 7567, 7811, 8315, 8459, 8479, 9611, 9895, 9943, 11159, 12271, 12731, 12851, 13835, 14447, 15155, 15251, 16091, 17891, 18143, 18319, 21059, 21755, 23055, 23411, 23435, 23815, 24395, 24535, 26143, 27179

Offset

1,1

Comments

Fourth row of A166092.

Links

Table of n, a(n) for n=1..36.

Crossrefs

a(n) = A004767(A166056(n)).

Sequence in context: A190028 A184545 A096032 * A306381 A172779 A056068

Adjacent sequences: A166054 A166055 A166056 * A166058 A166059 A166060

Keyword

nonn

Author

Antti Karttunen, Oct 08 2009

Status

approved