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A165658 Denominators of A002110 divided by A102647, starting from the second term of both. 3

%I

%S 1,1,1,4,6,48,64,96,576,1728,13824,165888,1036800,9953280,119439360,

%T 297271296,134369280000,222953472000,75246796800,32105299968000,

%U 229323571200,568865783808000000,125150472437760000,6129819058176000

%N Denominators of A002110 divided by A102647, starting from the second term of both.

%o (PARI) a1(n)=prod(i=1, n, prime(i));

%o b1(n)=prod(i=1, n, prime(n+1)%prime(i));

%o a(n)=if(n<0, 0, denominator(a1(n)/b1(n)));

%o for(n=1, 25, print1(a(n) ", "))

%Y Cf. A002110, A102647, A165657, A165659, A165660.

%K easy,nonn

%O 1,4

%A _Creighton Dement_, Sep 24 2009

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Last modified May 22 09:50 EDT 2022. Contains 353942 sequences. (Running on oeis4.)