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%I #14 Jan 15 2021 07:36:56
%S 1,1,5,35,315,3465,45045,675675,11486475,218243025,4583103525,
%T 105411381075,2635284526875,71152682225625,2063427784543125,
%U 63966261320836875,2110886623587616875,73881031825566590625
%N Second Eulerian transform of 1, 2, 3, 4, 5, ... (A000027).
%D R. L. Graham, D. E. Knuth and O. Patashnik, Concrete Mathematics. Addison-Wesley, Reading, MA, 1990, p. 256.
%F a(n) = Sum_{k=0..n} E(n,k) A000027(k), where E(n,k) is a second-order Eulerian number (A008517).
%Y Cf. A001147, A008517.
%Y Apparently equals A051577(n-2), n > 1.
%K nonn
%O 1,3
%A _Ross La Haye_, Feb 14 2005
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