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A086877
Primes of the form (k+1)^k - k^k.
1
5, 37, 4651, 1273609
OFFSET
1,1
COMMENTS
a(5) has 372 decimal digits.
PROG
(PARI) f(n) = for(x=1, n, y=(x+1)^x-x^x; if(isprime(y), print1(y" ")))
CROSSREFS
The values of k are in A098463.
Primes in A055869.
Cf. A085682.
Sequence in context: A089795 A081971 A350966 * A372839 A061674 A247709
KEYWORD
nonn
AUTHOR
Cino Hilliard, Aug 21 2003
STATUS
approved