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%I #9 May 08 2020 18:56:28
%S 1,9,11,81,198,121,729,2673,3267,1331,6561,32076,58806,47916,14641,
%T 59049,360855,882090,1078110,658845,161051,531441,3897234,11908215,
%U 19405980,17788815,8696754,1771561,4782969,40920957,150043509,305644185
%N Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*11^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.
%H Harvey P. Dale, <a href="/A038301/b038301.txt">Table of n, a(n) for n = 0..1000</a>
%t Table[Binomial[i,j]9^(i-j) 11^j,{i,0,10},{j,0,i}]//Flatten (* _Harvey P. Dale_, May 08 2020 *)
%K nonn,tabl,easy
%O 0,2
%A _N. J. A. Sloane_.
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