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%I #9 Jun 24 2017 00:59:29
%S 1,-1,2,-18,168,-1920,25920,-418320
%N Right-hand diagonal of triangle A259879.
%D H. W. Gould, R. K. Guy, and N. J. A. Sloane, Correspondence, 1987.
%H H. W. Gould, R. K. Guy, and N. J. A. Sloane, <a href="/A005169/a005169_5.pdf">Correspondence</a>, 1987.
%Y Cf. A259879.
%K sign,more
%O 0,3
%A _N. J. A. Sloane_, Jul 10 2015