A162591 Primes in A007781.

3, 23, 229, 776887, 275311670611, 808793517812627212561, 47962816398523117606189726043968411848519304708598059350620557763277694737755820158580941773369740112983781265183299561695077810144494290292906506606685128216915382107158604900927276535058149770652889252352435564631

Offset

1,1

Comments

See A072164 for a condensed representation of the same information.

Links

Table of n, a(n) for n=1..7.

Example

3^3-2^2=27-4=23 is prime and enters the list.

Mathematica

f[n_]:=n^n-(n-1)^(n-1); lst={}; Do[If[PrimeQ[f[n]], AppendTo[lst, f[n]]], {n, 2, 5!}]; lst

Crossrefs

Cf. A068955.

Sequence in context: A151393 A007781 A068146 * A278745 A122009 A360987

Adjacent sequences: A162588 A162589 A162590 * A162592 A162593 A162594

Keyword

nonn

Author

Vladimir Joseph Stephan Orlovsky, Jul 07 2009

Extensions

Definition simplified, reference to A072164 and A068955 added by R. J. Mathar, Aug 11 2009

Status

approved