A288892 Primes of the form k!12+2, where k!12 is the 12-way factorial number.
3, 5, 7, 11, 13, 47, 191, 1217, 2467, 47387, 98348405029877, 4236855368093671921723127, 67181587479226956985234896806020127, 892032079930114592828175067173074768240627, 1350562067805887256448098266867371770081404755312330218315703127
Offset: 1
Keywords
Links
- Robert Price, Table of n, a(n) for n = 1..20
- Henri& Renaud Lifchitz, PRP Records.Search for n!12+2.
- Joe McLean, Interesting Sources of Probable Primes
- OpenPFGW Project, Primality Tester
Crossrefs
Cf. A283594.
Programs
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Mathematica
MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]]; Select[Table[MultiFactorial[i, 12] + 2, {i, 0, 100}], PrimeQ[#]&]