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 A093572 Greatest prime factor of Product(k+prime(k): 1<=k<=n). 5
 3, 5, 5, 11, 11, 19, 19, 19, 19, 19, 19, 19, 19, 19, 31, 31, 31, 79, 79, 79, 79, 101, 101, 113, 113, 127, 127, 127, 127, 127, 127, 163, 163, 173, 173, 173, 173, 173, 173, 173, 173, 223, 223, 223, 223, 223, 223, 271, 271, 271, 271, 271, 271, 271, 271, 271, 271 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS a(n) = A006530(A093570(n)) = A006530(A093571(n)); a(n) = Max(A076556(k): 1<=k<=n). LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 MATHEMATICA PrimeFactors[n_Integer] := Flatten[ Table[ # [[1]], {1}] & /@ FactorInteger[n]]; Table[ PrimeFactors[ Product[k + Prime[k], {k, n}]][[ -1]], {n, 60}] (* Robert G. Wilson v, Apr 07 2004 *) FactorInteger[#][[-1, 1]]&/@FoldList[Times, Table[n+Prime[n], {n, 60}]] (* Harvey P. Dale, May 27 2016 *) CROSSREFS Cf. A014688, A092602. Sequence in context: A155537 A164663 A098971 * A317650 A240731 A266505 Adjacent sequences:  A093569 A093570 A093571 * A093573 A093574 A093575 KEYWORD nonn AUTHOR Reinhard Zumkeller, Apr 01 2004 EXTENSIONS More terms from Robert G. Wilson v, Apr 07 2004 STATUS approved

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Last modified November 25 14:33 EST 2020. Contains 338624 sequences. (Running on oeis4.)