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%I #2 Mar 31 2012 13:20:14
%S 1,3,25,239,3289,53111,1031497,22906903,578734697,16306214743,
%T 508360540457,17354157283287,644314385719593,25842490815894231,
%U 1113789927340848937,51332921853722842327,2519491205735072674601
%N Alternating row sums of triangle A134151.
%F a(n)=sum(A134151(n,m)*(-1)^(m-1),m=1..n), n>=1.
%Y Cf. A134152 (row sums of triangle A134151).
%K nonn,easy
%O 1,2
%A _Wolfdieter Lang_ Nov 13 2007
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