A288619 Primes of the form k!6+48, where k!6 is the sextuple factorial number (A085158).
53, 103, 139, 983, 1777, 21827623, 2131900273, 104463111073, 23481740411754673, 606997343490162673, 1714167050058087673, 11510631741140058401923, 10465247677041459437875114423
Offset: 1
Keywords
Links
- Robert Price, Table of n, a(n) for n = 1..16
- Henri& Renaud Lifchitz, PRP Records.Search for n!6+48.
- Joe McLean, Interesting Sources of Probable Primes
- OpenPFGW Project, Primality Tester
Crossrefs
Cf. A288450.
Programs
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Mathematica
MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]]; Select[Table[MultiFactorial[i, 6] + 48, {i, 0, 100}], PrimeQ[#]&] Select[(Table[Times@@Range[n,1,-6],{n,200}]+48),PrimeQ] (* Harvey P. Dale, Oct 02 2020 *)