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1,1
The next terms are too large to be displayed:
a(5)= 1158^1158-1158!+1158+1 (n=1158), which has 3548 digits.
a(6)= 14115^14115-14115!+14115+1 (n=14115), which has 58573 digits.
No other term has been found for n<30000.
Table of n, a(n) for n=1..4.
Do[p=n^n-n!+n+1; If[PrimeQ[p], Print[p]], {n, 200}]
Sequence in context: A079014 A215436 A082973 * A082815 A115893 A323338
Adjacent sequences: A187601 A187602 A187603 * A187605 A187606 A187607
hard,nonn
Marco Ripà, Mar 11 2011
a(5) and a(6) found by Matevz Markovic, Mar 03 2014
approved