A289735 Primes of the form k!6-32, where k!6 is the sextuple factorial number (A085158).

23, 59, 373, 1697, 7577923, 21827543, 295540213, 131527051677143, 2435649120429493, 12604484198222791843, 85869076433056713726000946843, 1529106341836865438018563891724026267890593, 20902899038646966778921470349830080361289716808681312890593

Offset

1,1

Links

Robert Price, Table of n, a(n) for n = 1..17

Henri & Renaud Lifchitz, PRP Records.Search for n!6-32.

Joe McLean, Interesting Sources of Probable Primes

OpenPFGW Project, Primality Tester

Mathematica

MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]];
Select[Table[MultiFactorial[i, 6] - 32, {i, 10, 100}], PrimeQ[#]&]

Crossrefs

Cf. A289699.

Sequence in context: A033217 A142107 A107208 * A321133 A055821 A080822

Adjacent sequences: A289732 A289733 A289734 * A289736 A289737 A289738

Keyword

nonn

Author

Robert Price, Jul 10 2017

Status

approved