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 A157132 Factorial of primes divided by prime numbers' respective places in the sequence of primes. 1
 2, 3, 40, 1260, 7983360, 1037836800, 50812489728000, 15205637551104000, 2872446304320552960000, 884176199373970195454361600000, 747530786743447528884142080000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS FORMULA a(n) = prime(n)!/n. EXAMPLE E.g. leading term = 2!/1 = 2, second term = 3!/2 = 3, third term = 5!/3 = 40, etc. MATHEMATICA Table[Prime[n]!/n, {n, 20}] (* Harvey P. Dale, May 24 2017 *) PROG (PARI) a(n) = prime(n)!/n; \\ Michel Marcus, Aug 19 2013 CROSSREFS Terms of A039716 divided by sequence of natural numbers A000027 Cf. A177946. [From Reinhard Zumkeller, May 15 2010] Sequence in context: A097170 A231797 A176366 * A262189 A077336 A242174 Adjacent sequences:  A157129 A157130 A157131 * A157133 A157134 A157135 KEYWORD easy,nonn AUTHOR Jeremy Cahill (jcahill(AT)inbox.com), Feb 23 2009 STATUS approved

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Last modified February 20 22:51 EST 2019. Contains 320362 sequences. (Running on oeis4.)