A374189 The values of A374188, seen as an ordered set.

2, 10, 12, 18, 24, 26, 28, 34, 42, 44, 48, 50, 56, 58, 60, 66, 74, 76, 82, 88, 90, 92, 96, 98, 106, 108, 112, 114, 120, 122, 124, 130, 138, 140, 146, 152, 154, 156, 162, 170, 172, 176, 178, 184, 186, 188, 192, 194, 202, 204, 210, 216, 218, 220, 224, 226, 234, 236, 240

Offset: 1

Author

Peter Luschny, Jul 01 2024

Keywords

• nonn

Comments

k is a term if and only if there exists a positive integer a of the form 4*n - 1, such that K(a / k) != K((-1)^floor(k/2)*k / a), where K denotes the Kronecker symbol (A372728).

Examples

			34 is a term, because K(15/34) = 1, but K(-34/15) = -1.
18 is a term, because K(19/18) = 1, but K(-18/19) = -1.
		

Crossrefs

Cf. A374188, A372728, A374157.

Formula

All terms are even.