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%I #15 Aug 19 2017 16:24:52
%S 1,-1,1,-2,1,1,-3,4,2,1,-4,9,10,4,1,-5,16,28,24,8,1,-6,25,60,80,56,16
%N Related to triangle A056858 of number of rises in set partitions of n at a given index i.
%D W. C. Yang, Conjectures on some sequences involving set partitions and Bell numbers, preprint, 2000. [Apparently unpublished. - _R. J. Mathar_, Oct 06 2011]
%e 1,-1;
%e 1,-2,1;
%e 1,-3,4,2;
%e 1,-4,9,10,4;
%e ...
%Y Cf. Bell numbers A000110.
%Y Cf. A056857-A056862.
%K sign,tabf,more,obsc,uned
%O 1,4
%A Winston C. Yang (winston(AT)cs.wisc.edu), Aug 31 2000
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