Voozh

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