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Class numbers associated with the entries of A094843.
(Formerly N2220)
3

%I N2220 #10 Oct 12 2017 03:17:56

%S 1,1,1,1,22,79,107,311,432,487,665,692,1044,1536,13909,15204,29351,

%T 44332,70877,149460,223574,296475,553436,3791896,5798780,8035685,

%U 19412108,33684408,77949544,119705436,156104956

%N Class numbers associated with the entries of A094843.

%D N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

%H Michael John Jacobson, <a href="http://hdl.handle.net/1993/18862">Computational techniques in quadratic fields</a>, Doctor of Science in Computer Science Thesis, University of Manitoba, 1995, 147 pages.

%H Michael John Jacobson Jr. and Hugh C. Williams, <a href="https://doi.org/10.1090/S0025-5718-02-01418-7">New quadratic polynomials with high densities of prime values</a>, Math. Comp. 72 (2003), 499-519

%H D. H. Lehmer, E. Lehmer and D. Shanks, <a href="https://doi.org/10.1090/S0025-5718-1970-0271006-X">Integer sequences having prescribed quadratic character</a>, Math. Comp., 24 (1970), 433-451.

%Y Cf. A094843.

%K nonn

%O 1,5

%A _N. J. A. Sloane_, Jun 13 2004