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%I #5 Feb 22 2013 14:38:50
%S 1,2,1,1,3,1,3,5,4,1,1,13,11,5,1,2,23,37,19,6,1,1,51,107,81,29,7,1,4,
%T 97,332,319,151,41,8,1,1,207,985,1295,749,253,55,9,1,2,401,2992,5161,
%U 3774,1511,393,71,10,1,1,825,8939,20725,19021,9107,2743,577,89,11,1
%N Square array, read by antidiagonal: T(n,k) = n*T(n,k-1)+(-1)^k*T(n,floor(k/2)).
%e Row 1 :1, 2, 1, 3, 1, 2, 1, 2, 1, 4, 1, 2, 1, ...(A001511).
%e Row 2 :1, 3, 5, 13, 23, 51, 97, 207, 401, 825, 1627, ...(A089067).
%e Row 3 :1, 4, 11, 37, 107, 332, 985, 2992, 8939, 26924, 80665, ...
%e Row 4 :1, 5, 19, 81, 319, 1295, 5161,20725, 82819, 331595, 1326061, ...
%e Row 5 :1, 6, 29, 151, 749, 3774, 19021, 94954, 475519, 2376846, 11888004, ...
%Y Cf. A001511, A089067.
%K easy,nonn,tabl
%O 1,2
%A _Philippe Deléham_, Dec 05 2003
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