A078450 - OEIS

%I #4 Dec 05 2013 19:55:58

%S 1,6,140,10296,1560090,818269800,890504276970,578105086816530,

%T 845098382127164340,1345577210752717337010,2349420395175736366400280,

%U 4072812804055080385050520770,16954222832305267550769863845710

%N a(n) = product of terms in n-th row of A078448.

%o (PARI) {s=[1]; for (n=2,14,print1(prod(i=1,n-1,s[i]),","); a=s[n-1]; s=[a+1]; for(j=2,n,k=s[j-1]+1; c=1; while(c>0,b=1; for(i=1,matsize(s)[2],if(gcd(k,s[i])>1,b=0)); if(b==0,k++,c=0)); s=concat(s,k)))}

%Y Cf. A078447, A078448, A078449.

%K nonn

%O 1,2

%A _Amarnath Murthy_, Nov 27 2002

%E Edited and extended by _Klaus Brockhaus_, Dec 10 2002