%I A002146 M4377 N1841
%S A002146 7,23,47,71,199,167,191,239,383,311,431,647,479,983,887,719,839,1031,
%T A002146 1487,1439,1151,1847,1319,3023,1511,1559,2711,4463,2591,2399,3863,2351,
%U A002146 3527,3719
%N A002146 Smallest prime == 7 mod 8 where Q(sqrt -p) has class number 2n+1.
%D A002146 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A002146 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A002146 D. A. Buell, Binary Quadratic Forms. Springer-Verlag, NY, 1989, pp. 224-241.
%D A002146 R. B. Lakein and S. Kuroda, Tables of class numbers h(-p) for fields 
               Q(sqrt(-p)), p<= 465071, Math. Comp., 24 (1970), 491-492.
%H A002146 David Broadhurst and T. D. Noe, <a href="b002146.txt">Table of n, a(n) 
               for n=0..28603</a>
%Y A002146 Cf. A002147, A002143 (class numbers)
%Y A002146 Sequence in context: A000353 A097149 A139035 this_sequence A073577 A139830 
               A153210
%Y A002146 Adjacent sequences: A002143 A002144 A002145 this_sequence A002147 A002148 
               A002149
%K A002146 nonn
%O A002146 0,1
%A A002146 N. J. A. Sloane (njas(AT)research.att.com), Mira Bernstein (mira(AT)math.berkeley.edu)