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A307250 Primes q == 1 (mod 4) such that there is one equivalence class of quaternary quadratic forms of discriminant q not representing 2. 0
193, 233, 257, 277, 349, 389, 397, 461, 509 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..9.

Jürg Kramer, On the linear independence of certain theta-series, Mathematische Annalen 281.2 (1988): 219-228. See page 226.

CROSSREFS

Sequence in context: A298728 A332457 A088119 * A226147 A142925 A060333

Adjacent sequences:  A307247 A307248 A307249 * A307251 A307252 A307253

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Mar 31 2019

STATUS

approved

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Last modified April 1 01:23 EDT 2020. Contains 333153 sequences. (Running on oeis4.)