A187603 Primes of the form n!+n^n+n-1.

2, 7, 283, 47381, 39346414477670243303441, 11756638905368911244213090105451203173227585429569569

Offset

1,1

Comments

The next term a(7) has 96 digits and is too large to be displayed here. a(8) has 351 digits.

Links

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

Example

4!+4^4+4-1 = 283 is prime and therefore in the sequence.

Mathematica

Do[p=n!+n^n+n-1; If[PrimeQ[p], Print[p]], {n, 150}]

Crossrefs

Sequence in context: A013097 A037067 A012987 * A290637 A260967 A367788

Adjacent sequences: A187600 A187601 A187602 * A187604 A187605 A187606

Keyword

nonn

Author

Marco Ripà, Mar 11 2011

Status

approved