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A154665
Numbers n such that n!^2-+8663 are primes.
0
3, 4, 5, 6, 40
OFFSET
1,1
COMMENTS
Next term is larger than 72
a(6) > 1000 (if it exists) - Robert Price, Mar 26 2019
MATHEMATICA
lst={}; a=8663; Do[If[PrimeQ[n!^2-a]&&PrimeQ[n!^2+a], AppendTo[lst, n]], {n, 3*4!}]; lst
KEYWORD
nonn,more
AUTHOR
STATUS
approved