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%I #5 Mar 30 2012 16:47:46
%S 1,9,5,81,90,25,729,1215,675,125,6561,14580,12150,4500,625,59049,
%T 164025,182250,101250,28125,3125,531441,1771470,2460375,1822500,
%U 759375,168750,15625,4782969,18600435,31000725,28704375,15946875
%N Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*5^j.
%D B. N. Cyvin et al., Isomer enumeration of unbranched catacondensed polygonal systems with pentagons and heptagons, Match, No. 34 (Oct 1996), pp. 109-121.
%K nonn,tabl,easy
%O 0,2
%A _N. J. A. Sloane_.
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