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%I #2 Mar 30 2012 18:53:09
%S 1,-1,1,-1,-3,1,-1,-7,-6,1,-1,-15,-25,-10,1,-1,-31,-90,-65,-15,1,-1,
%T -63,-301,-350,-140,-21,1,-1,-127,-966,-1701,-1050,-266,-28,1,-1,-255,
%U -3025,-7770,-6951,-2646,-462,-36,1
%N Triangle read by rows. Signed version of A008277.
%C Main diagonal positive, the rest of the terms negative. Matrix inverse of this triangle is A154960. Signs in columns as in A153881.
%K sign,tabl
%O 1,5
%A _Mats Granvik_, Jan 18 2009
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