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%I #24 Sep 08 2022 08:45:33
%S 29,1259,9979199,1556755199,88921857023999,30411275102207999,
%T 6463004184721244159999,2210440498434925488635903999999,
%U 2055709663544480704431390719999999,3440938272806586261578994895395225599999999,8363131653290951777042515513360187916287999999999,15103815765843458909338783017128499376816127999999999,64655810377792045160741088788402994992299408097279999999999,1068720821015006391074503438347349912422585947091703431167999999999999
%N a(n) = (prime(n)! - 4)/4.
%H Vincenzo Librandi, <a href="/A139192/b139192.txt">Table of n, a(n) for n = 3..87</a>
%F a(n) = (A139189(n+2) - 3)/4. - _R. J. Mathar_, May 25 2008
%t Table[(Prime[n]! - 4)/4, {n, 3, 20}]
%o (Magma) [(Factorial(NthPrime(n))-4)/4: n in [3..20]]; // _Vincenzo Librandi_, Jun 02 2017
%o (PARI) a(n) = (prime(n)!-4)/4;
%o lista(nn) = for (n=3, nn, print1(a(n), ", ")); \\ _Michel Marcus_, Feb 17 2018
%Y Cf. A139189, A139190, A139191, A139192, A139193, A139194, A139195, A139196, A139197, A139198.
%K nonn
%O 3,1
%A _Artur Jasinski_, Apr 11 2008
%E More terms from _R. J. Mathar_, May 25 2008
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