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Primes resulting from A085013.
1

%I #5 Mar 14 2015 16:42:09

%S 5,17,107,1367,31397,910457,33686837,1448533907,88360568207,

%T 6450321478967,574078611627887,78648769793020247,11875964238746056997,

%U 1983286027870591518167,394673919546247712114837

%N Primes resulting from A085013.

%t NextPrim[n_] := Block[{k = n + 1}, While[ ! PrimeQ[k], k++ ]; k]; a[0] = 1; a[n_] := a[n] = Block[{p = NextPrim[ a[n - 1]], q = Product[a[i], {i, 0, n - 1}]}, While[ !PrimeQ[p*q + 2], p = NextPrim[p]]; p]; Table[ Product[ a[i], {i, n}] + 2, {n, 16}] (* _Robert G. Wilson v_, Jan 12 2005 *)

%Y Cf. A100276. Different from A098028.

%K nonn

%O 1,1

%A Herman H. Rosenfeld (herm3(AT)pacbell.net), Dec 29 2004

%E More terms from _Robert G. Wilson v_, Jan 12 2005