A166053 Integers of the form 4n+3 for which Sum_{i=1..u} J(i,4n+3) obtains value zero exactly 3 times, when u ranges from 1 to (4n+3). Here J(i,k) is the Jacobi symbol.

11, 319, 607, 703, 895, 1063, 1103, 1135, 1447, 1495, 2287, 2383, 2543, 3223, 3967, 4255, 4615, 4807, 5143, 5207, 5407, 5695, 5783, 5983, 6247, 6487, 6607, 6799, 6943, 7495, 7927, 8503, 9103, 9127, 9655, 10183, 10615, 10735, 12055, 13207

Offset

1,1

Comments

Second row of A166092.

Links

Table of n, a(n) for n=1..40.

Crossrefs

a(n) = A004767(A166052(n)).

Sequence in context: A266484 A219979 A115609 * A200749 A324422 A270815

Adjacent sequences: A166050 A166051 A166052 * A166054 A166055 A166056

Keyword

nonn

Author

Antti Karttunen, Oct 08 2009

Status

approved