A166055 Integers of the form 4n+3 for which Sum_{i=1..u} J(i,4n+3) obtains value zero exactly 5 times, when u ranges from 1 to (4n+3). Here J(i,k) is the Jacobi symbol.

19, 35, 59, 63, 103, 131, 251, 279, 299, 371, 395, 419, 495, 711, 755, 899, 927, 943, 971, 1091, 1139, 1143, 1207, 1359, 1595, 1739, 1743, 1791, 1811, 1931, 1979, 2007, 2219, 2411, 2423, 2435, 2439, 2651, 2655, 2703, 2771, 2847, 2871, 2915, 2939

Offset

1,1

Comments

Third row of A166092.

Links

Table of n, a(n) for n=1..45.

Crossrefs

a(n) = A004767(A166054(n)).

Sequence in context: A242847 A044064 A044445 * A333414 A146579 A146454

Adjacent sequences: A166052 A166053 A166054 * A166056 A166057 A166058

Keyword

nonn

Author

Antti Karttunen, Oct 08 2009

Status

approved