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 A186944 Geometric mean of n-th row of A080508. 0
 1, 2, 2, 6, 6, 30, 30, 210, 210, 210, 210, 2310, 2310, 30030, 30030, 30030, 30030, 510510, 510510, 9699690, 9699690, 9699690, 9699690, 223092870, 223092870, 223092870, 223092870, 223092870, 223092870, 6469693230, 6469693230, 200560490130, 200560490130 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS FORMULA For n != 2, a(n) = A034386(n-1). - Jeppe Stig Nielsen, Nov 04 2018 PROG (PARI) a(n) = {if (n == 1, return (1)); if (n == 2, return (2)); f = factor((n-1)!); prod(i=1, #f~, f[i, 1]); } \\ Michel Marcus, Aug 30 2013 (PARI) a(n) = if(n==2, 2, prod(i=1, primepi(n-1), prime(i))) \\ Jeppe Stig Nielsen, Nov 04 2018 CROSSREFS Cf. A080509. Sequence in context: A056038 A076929 A265642 * A247525 A305295 A174789 Adjacent sequences: A186941 A186942 A186943 * A186945 A186946 A186947 KEYWORD nonn,changed AUTHOR Michel Marcus, Aug 30 2013 STATUS approved

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Last modified December 7 08:24 EST 2022. Contains 358649 sequences. (Running on oeis4.)