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Discriminants D < 0 such that h(D) > h(D') for D < D' < 0, negated.
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%I #11 May 29 2013 00:19:10

%S 3,15,23,39,47,71,95,119,167,191,215,239,311,431,479,551,671,719,791,

%T 839,959,1151,1319,1511,1559,1679,1991,2159,2351,2519,2831,2999,3071,

%U 3671,3839,3911,4031,4079,4199,4679,4991,5351,5519,5591,5711,6431,6551,7391,8111

%N Discriminants D < 0 such that h(D) > h(D') for D < D' < 0, negated.

%C Essentially records in A014600.

%D H. Heilbronn, On the class number in imaginary quadratic fields, Quart. J. Math. Oxford 5 (1934), pp. 293-301.

%H Charles R Greathouse IV, <a href="/A225060/b225060.txt">Table of n, a(n) for n = 1..675</a>

%o (PARI) r=0;forstep(n=3,1e6,[1,3],t=qfbclassno(-n);if(t>r,r=t;print1(n", ")))

%Y Cf. A014600, A225061, A038552.

%K nonn

%O 1,1

%A _Charles R Greathouse IV_, Apr 26 2013