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%I #5 Jul 02 2023 14:30:15
%S 1,4,36,264,2040,16000,149600,1362240,14326080,158438400,1931731200,
%T 25155648000,357727910400,5420614348800,88408793088000,
%U 1532112261120000,28238983686144000,549825606070272000,11292931674759168000,243644152971018240000,5511211980392079360000
%N Third column (m=3) of triangle A144886 (S1hat(4))
%F a(n) = A144886(n+3,3), n>=0.
%Y Cf. A144888 (second column).
%K nonn,easy
%O 0,2
%A _Wolfdieter Lang_, Oct 09 2008
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