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%I #7 Jan 14 2013 02:22:04
%S 6,7,10,16,25
%N Problem 49 on page 235 of "Mathematics", California Edition, by Carole Greenes et al.
%C Several different books match the description, e.g. ISBN 978-0618081776 and ISBN 978-0618081790. The precise definition remains a mystery.
%D Carole Greenes, Miriam A. Leiva, Bruce R. Vogeli (et al.?), "Mathematics, California Edition", various editions published by Houghton Mifflin Company.
%K nonn,unkn
%O 0,1
%A Joe T. Hoang (HoangJoe(AT)yahoo.com), Mar 18 2003
%E Edited by _M. F. Hasler_, Mar 27 2008
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