%I #11 Jul 13 2013 12:04:24

%S 1,1,3,5,15,21,61,183,285,327,1385,4155,6681,8475,9129,50521,151563,

%T 247065,325947,378105,396363,2702765,8108295,13311741,17908935,

%U 21517869,23823015,24615741,199360981,598082943,985993845,1341471567,1643702325,1874297343

%N Left half of triangle A125053.

%H Reinhard Zumkeller, <a href="/A210111/b210111.txt">Rows n=0..120 of triangle, flattened</a>

%F T(n,k) = A125053(n,k), 0 <= k <= n.

%o (Haskell)

%o a210111 n k = a210111_tabl !! n !! k

%o a210111_row n = a210111_tabl !! n

%o a210111_tabl = zipWith take [1..] a125053_tabf

%Y Cf. A000364 (left edge), A125054 (right edge); A210108.

%K nonn,tabl

%O 0,3

%A _Reinhard Zumkeller_, Mar 17 2012