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Triangle whose (i,j)-th entry is binomial(i,j)*2^(i-j)*6^j.
0

%I #5 Mar 30 2012 16:47:45

%S 1,2,6,4,24,36,8,72,216,216,16,192,864,1728,1296,32,480,2880,8640,

%T 12960,7776,64,1152,8640,34560,77760,93312,46656,128,2688,24192,

%U 120960,362880,653184,653184,279936,256,6144,64512,387072,1451520

%N Triangle whose (i,j)-th entry is binomial(i,j)*2^(i-j)*6^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_.