A288613 Primes of the form k!6+16, where k!6 is the sextuple factorial number (A085158).
17, 19, 23, 43, 71, 107, 421, 8521, 21521, 21827591, 49579091, 295540261, 42061737041, 104463111041, 131527051677191, 9531467484069295223586105103141, 1115181695636107541159574297065641, 20881494984250735169104758744498001297509736890641
Offset: 1
Keywords
Links
- Robert Price, Table of n, a(n) for n = 1..20
- Henri& Renaud Lifchitz, PRP Records.Search for n!6+16.
- Joe McLean, Interesting Sources of Probable Primes
- OpenPFGW Project, Primality Tester
Crossrefs
Cf. A288444.
Programs
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Mathematica
MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]]; Select[Table[MultiFactorial[i, 6] + 16, {i, 0, 100}], PrimeQ[#]&] Select[Table[Times@@Range[n,1,-6]+16,{n,200}],PrimeQ] (* Harvey P. Dale, Sep 26 2023 *)