login
A374181
Numbers k such that K(7 / k) != K((-1)^floor(k/2)*k / 7), where K(a/b) is the Kronecker symbol. Row 2 of A374188.
5
2, 10, 12, 18, 24, 26, 34, 44, 48, 50, 58, 60, 66, 74, 76, 82, 88, 90, 92, 96, 106, 108, 114, 120, 122, 124, 130, 138, 146, 152, 156, 162, 170, 172, 176, 178, 184, 186, 188, 192, 194, 202, 204, 216, 218, 220, 226, 234, 236, 240, 242, 248, 250, 258, 268, 274
OFFSET
1,1
PROG
(SageMath) # see A374188
print(A374188_row(2, 350))
CROSSREFS
Cf. A372728 (Kronecker).
Sequence in context: A374189 A374184 A374182 * A178504 A193733 A167503
KEYWORD
nonn
AUTHOR
Peter Luschny, Jun 30 2024
STATUS
approved