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A209155 Triangle read by rows: numerators of Stirling-like triangle of rational numbers. 1

%I #9 Feb 16 2014 16:21:44

%S -1,-1,1,-1,3,-1,-1,1,-2,1,-1,5,-5,5,-1,-1,1,-5,5,-3,1,-1,7,-7,35,-7,

%T 7,-1,-1,4,-28,7,-14,14,-4,1

%N Triangle read by rows: numerators of Stirling-like triangle of rational numbers.

%H Joseph M. Santmyer, <a href="http://dx.doi.org/10.1016/S0012-365X(96)00082-9">A Stirling like sequence of rational numbers</a>, Discrete Math. 171 (1997), no. 1-3, 229-235. MR1454453.

%e Triangle begins:

%e -1,

%e -1,1,

%e -1,3/2,-1,

%e -1,1,-2,1,

%e -1,5,-5/3,5/2,-1,

%e -1,1,-5,5/2,-3,1,

%e -1,7,-7/3,35/4,-7/2,7/2,-1,

%e -1,4,-28/3,7/3,-14,14/3,-4,1,...

%Y Cf. A209156.

%K sign,frac,tabl,more

%O 1,5

%A _N. J. A. Sloane_, Mar 05 2012

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Last modified April 19 17:39 EDT 2024. Contains 371797 sequences. (Running on oeis4.)