login
Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*10^j.
0

%I #5 Mar 30 2012 16:47:46

%S 1,5,10,25,100,100,125,750,1500,1000,625,5000,15000,20000,10000,3125,

%T 31250,125000,250000,250000,100000,15625,187500,937500,2500000,

%U 3750000,3000000,1000000,78125,1093750,6562500,21875000,43750000

%N Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*10^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_.