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%I #19 Nov 13 2019 01:38:36
%S 2,5,19,97,601,35281,5748019201,2311256907767808001,
%T 594596384994354462720001,
%U 5382999938946608755288342267304597177897268019200000000001,136332557214406957166109544809874331662074014454506289616400595025920000000000001
%N Primes of the form n! - (n-1)! + 1.
%C Primes in A188914.
%t f[n_]:=n!+n; lst={};Do[If[PrimeQ[f[n+1]-f[n]],AppendTo[lst,f[n+1]-f[n]]],{n,0,5!}];lst (* _Vladimir Joseph Stephan Orlovsky_, Jun 27 2009 *)
%Y Cf. A188914. For more terms, see A049432.
%K nonn
%O 1,1
%A _N. J. A. Sloane_