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

1,1

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).

Links

Table of n, a(n) for n=1..59.

Formula

All terms are even.

Example

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.

Sequence in context: A092385 A104238 A053069 * A374184 A374182 A374181

Adjacent sequences: A374186 A374187 A374188 * A374190 A374191 A374192

Keyword

nonn

Author

Peter Luschny, Jul 01 2024

Status

approved