A374190 - OEIS

A374190

Complement of A374189 in A005843.

0, 4, 6, 8, 14, 16, 20, 22, 30, 32, 36, 38, 40, 46, 52, 54, 62, 64, 68, 70, 72, 78, 80, 84, 86, 94, 100, 102, 104, 110, 116, 118, 126, 128, 132, 134, 136, 142, 144, 148, 150, 158, 160, 164, 166, 168, 174, 180, 182, 190, 196, 198, 200, 206, 208, 212, 214, 222

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

k is a term if and only if for all a of the form 4*n - 1 (n>=1) there is an even k 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..58.

CROSSREFS

Cf. A374189, A005843 (even numbers).

Sequence in context: A218465 A359676 A050902 * A320125 A110974 A173180

Adjacent sequences: A374187 A374188 A374189 * A374191 A374192 A374193

KEYWORD

nonn

AUTHOR

Peter Luschny, Jul 02 2024

STATUS

approved