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A139193 Natural numbers of the form (prime(n)! - 5)/5. 18

%I #6 Oct 03 2015 23:17:30

%S 23,1007,7983359,1245404159,71137485619199,24329020081766399,

%T 5170403347776995327999,1768352398747940390908723199999,

%U 1644567730835584563545112575999999

%N Natural numbers of the form (prime(n)! - 5)/5.

%p A039716 := proc(n) factorial(ithprime(n)) ; end: A139193 := proc(n) A039716(n)/5-1 ; end: seq(A139193(n),n=3..14) ; # _R. J. Mathar_, Sep 18 2009

%t Table[(Prime[n]! - 5)/5, {n, 3, 20}]

%Y Cf. A139189, A139190, A139191, A139192, A139193, A139194, A139195, A139196, A139197, A139198.

%K nonn

%O 1,1

%A _Artur Jasinski_, Apr 11 2008

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Last modified September 14 10:28 EDT 2024. Contains 375921 sequences. (Running on oeis4.)