%I #5 Mar 30 2012 17:35:59
%S 1,-1,2,-17,124,-2764,43688,-1859138,51236656,-3550889296,
%T 151107728672,-15494138893232,941930695305664,-133994296272170944,
%U 11024086088089751168,-2077570618897716831248,222290021402867410844416,-53603997631397508980982016,7234385689981722178901729792
%N Left-hand edge of triangle in A097474.
%K sign,easy
%O 0,3
%A _N. J. A. Sloane_, Sep 21 2004
%E More terms from _Emeric Deutsch_, Dec 24 2004