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A165657
Numerators of A002110 divided by A102647, starting from the second term of both.
3
2, 3, 15, 105, 385, 5005, 17017, 323323, 1062347, 30808063, 434113615, 35336848261, 1448810778701, 33545541876077, 266186053068611, 5426100312552455, 9156001667401012567, 42962777054727828199
OFFSET
1,1
PROG
(PARI) a1(n)=prod(i=1, n, prime(i)); b1(n)=prod(i=1, n, prime(n+1)%prime(i));
a(n)=if(n<0, 0, numerator(a1(n)/b1(n))); for(n=1, 20, print1(a(n) ", "))
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Creighton Dement, Sep 24 2009
STATUS
approved