A154660 Numbers n such that n!+37 and abs(n!-37) are primes.

3, 4, 5, 6, 7, 8

Offset

1,1

Comments

5!-37=83;5!+37=157,...

Links

Table of n, a(n) for n=1..6.

Mathematica

lst={}; a=37; Do[If[PrimeQ[n!-a]&&PrimeQ[n!+a], AppendTo[lst, n]], {n, 2*5!}]; lst

Crossrefs

Cf. A144046

Sequence in context: A134483 A121151 A088243 * A004492 A360663 A333914

Adjacent sequences: A154657 A154658 A154659 * A154661 A154662 A154663

Keyword

nonn,full,fini

Author

Vladimir Joseph Stephan Orlovsky, Jan 13 2009

Extensions

Name corrected by Chai Wah Wu, Oct 18 2020

Status

approved