%I A002347 M0151 N0061
%S A002347 1,1,2,1,3,3,2,4,1,3,5,5,3,6,1,7,3,6,5,3,7,6,9,9,5,8,4,10,9,7,3,11,
%T A002347 3,9,1,11,12,8,10,12,9,11,5,9,13,3,6,1,13,3,2,10,8,15,15,7,9,13,1,
%U A002347 15,14,15,15,5,3,15,12,4,17,9,15,11,15,14,5,6,18,2,16,7,13,17,11,18
%N A002347 Consider all primes of form p = (x^2 + 11y^2 )/4; sequence gives values 
               of y.
%D A002347 A. J. C. Cunningham, Quadratic Partitions. Hodgson, London, 1904, p. 
               1.
%D A002347 D. H. Lehmer, Guide to Tables in the Theory of Numbers. Bulletin No. 
               105, National Research Council, Washington, DC, 1941, p. 55.
%D A002347 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A002347 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%Y A002347 Cf. A002346, A056874.
%Y A002347 Sequence in context: A123143 A128133 A032434 this_sequence A006642 A094435 
               A133341
%Y A002347 Adjacent sequences: A002344 A002345 A002346 this_sequence A002348 A002349 
               A002350
%K A002347 nonn
%O A002347 3,3
%A A002347 N. J. A. Sloane (njas(AT)research.att.com).