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Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*12^j.
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%I #8 Nov 21 2013 12:46:44

%S 1,5,12,25,120,144,125,900,2160,1728,625,6000,21600,34560,20736,3125,

%T 37500,180000,432000,518400,248832,15625,225000,1350000,4320000,

%U 7776000,7464960,2985984,78125,1312500,9450000,37800000,90720000

%N Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*12^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.

%t Flatten[Table[Binomial[i,j]5^(i-j) 12^j,{i,0,10},{j,0,i}]] (* _Harvey P. Dale_, Apr 24 2012 *)

%K nonn,tabl,easy

%O 0,2

%A _N. J. A. Sloane_.