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 A247451 Largest primorial factor of n-th least product of primorial numbers, cf. A025487. 4
 1, 2, 2, 6, 2, 6, 2, 6, 30, 2, 6, 6, 30, 2, 6, 6, 30, 2, 6, 30, 6, 210, 6, 30, 2, 6, 30, 6, 210, 6, 30, 2, 6, 30, 6, 210, 6, 30, 30, 2, 30, 6, 210, 6, 30, 6, 210, 6, 30, 30, 2, 30, 6, 2310, 210, 6, 30, 6, 210, 6, 30, 30, 2, 30, 6, 2310, 210, 6, 30, 30, 6 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(n) = A007947(A025487(n)) = A002110(A061394(n)). LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 PROG (Haskell) a247451 n = a247451_list !! (n-1) a247451_list = map a007947 a025487_list CROSSREFS Cf. A007947, A025487, A002110, A061394. Sequence in context: A071796 A121699 A080404 * A167268 A278162 A187223 Adjacent sequences:  A247448 A247449 A247450 * A247452 A247453 A247454 KEYWORD nonn AUTHOR Reinhard Zumkeller, Sep 17 2014 STATUS approved

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Last modified June 21 16:23 EDT 2021. Contains 345365 sequences. (Running on oeis4.)