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A288619 Primes of the form k!6+48, where k!6 is the sextuple factorial number (A085158). 1
53, 103, 139, 983, 1777, 21827623, 2131900273, 104463111073, 23481740411754673, 606997343490162673, 1714167050058087673, 11510631741140058401923, 10465247677041459437875114423 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Henri& Renaud Lifchitz, PRP Records.Search for n!6+48.
OpenPFGW Project, Primality Tester
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 *)
CROSSREFS
Cf. A288450.
Sequence in context: A044142 A044523 A063363 * A039476 A338836 A061656
KEYWORD
nonn
AUTHOR
Robert Price, Jun 11 2017
STATUS
approved

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Last modified April 12 22:48 EDT 2024. Contains 371639 sequences. (Running on oeis4.)