cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A062439 Primes at large indices: a(n) = prime(n!).

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%I A062439 #35 Dec 27 2024 13:30:19
%S A062439 2,2,3,13,89,659,5443,49033,484037,5222429,61194647,774825383,
%T A062439 10552185239,153903050137,2394322471421,39588599419319,
%U A062439 693389445083107,12826386978604427,249902442548157673,5115640857307591139,109776797549312197217,2464348772728229970857
%N A062439 Primes at large indices: a(n) = prime(n!).
%H A062439 Andrew Booker, <a href="https://t5k.org/nthprime/index.php#n-th">Nth Prime Page</a>.
%F A062439 a(n) = A000040(A000142(n)).
%p A062439 seq(ithprime(factorial(n)),n=0..10); # _Muniru A Asiru_, Dec 07 2018
%t A062439 Array[Prime[#!] &, 16, 0] (* _Michael De Vlieger_, Dec 06 2018 *)
%o A062439 (PARI) a(n) = prime(n!)
%o A062439 (Magma) [(NthPrime(Factorial(n))): n in [0..11]]; // _Vincenzo Librandi_, Dec 07 2018
%o A062439 (Python)
%o A062439 from sympy import prime, factorial
%o A062439 for n in range(0,14): print(prime(factorial(n))) # _Stefano Spezia_, Dec 07 2018
%Y A062439 Cf. A000040, A000142, A033844.
%K A062439 hard,nonn
%O A062439 0,1
%A A062439 _Labos Elemer_, Jul 09 2001
%E A062439 a(15)-a(19) from _Jens Kruse Andersen_, May 08 2010
%E A062439 a(20)-a(21) from _Henri Lifchitz_, Sep 09 2014