login
This site is supported by donations to The OEIS Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A049984 Primes of the form n! - (n-1)! + 1. 5
2, 5, 19, 97, 601, 35281, 5748019201, 2311256907767808001, 594596384994354462720001, 5382999938946608755288342267304597177897268019200000000001, 136332557214406957166109544809874331662074014454506289616400595025920000000000001 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Primes in A188914.

LINKS

Table of n, a(n) for n=1..11.

MATHEMATICA

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 *)

CROSSREFS

Cf. A188914. For more terms, see A049432.

Sequence in context: A020015 A291061 A188914 * A052866 A007003 A020117

Adjacent sequences:  A049981 A049982 A049983 * A049985 A049986 A049987

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 13 12:37 EST 2019. Contains 329968 sequences. (Running on oeis4.)