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 A260754 a(n) = prime(n+1)! / prime(n). 2
 3, 40, 1008, 5702400, 566092800, 27360571392000, 7155594141696000, 1360632459941314560000, 384424434510421824110592000000, 283546160488893890266398720000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..10. FORMULA a(n) = prime(n+1)! / prime(n) = A039716(n+1) / A000040(n). 10^(n-1)|a(n+3) for n>=0. - G. C. Greubel, Aug 20 2015 EXAMPLE a(2) = 5! / 3 = 40. MAPLE A260754:=n->ithprime(n+1)!/ithprime(n): seq(A260754(n), n=1..20); # Wesley Ivan Hurt, Aug 20 2015 MATHEMATICA Table[Prime[i+1] !/Prime[i], {i, 20}] (* G. C. Greubel, Aug 20 2015 *) PROG (PARI) vector(15, n, prime(n+1)!/prime(n)) \\ Michel Marcus, Aug 20 2015 (Magma) [Factorial(NthPrime(n+1))/NthPrime(n) : n in [1..10]]; // Wesley Ivan Hurt, Aug 20 2015 CROSSREFS Cf. A000040, A039716, A072472. Sequence in context: A143640 A341849 A358368 * A047799 A204515 A012250 Adjacent sequences: A260751 A260752 A260753 * A260755 A260756 A260757 KEYWORD nonn,easy AUTHOR Altug Alkan, Aug 20 2015 STATUS approved

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Last modified August 11 07:51 EDT 2024. Contains 375059 sequences. (Running on oeis4.)