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%I #14 Feb 03 2026 11:19:38
%S 1,1,1,4,9,5184,50,25920000,5023265625,15366400000000,395210285568,
%T 5204203908995922001920000,40054107573046875,
%U 9190115890706074528512000000000000,3914706236164400283750000000000000,4545685741877955054368980992,53937259628412917625487561458140625
%N a(n) = (-1)^n*A387347(n,n).
%C The terms in this sequence are observed from the least common multiple (lcm) of the denominators in the normalized coefficients as given in the link in A387347 by A.H.M. Smeets.
%Y Cf. A387347, A392806 (prime factorization).
%K nonn
%O 0,4
%A _A.H.M. Smeets_, Jan 23 2026