A133591 a(n) = ((p-1)^(p^2) + 1)/p^3 where p = prime(n).

19, 9007199254741, 392750863685502459010271914701912679

Offset

2,1

Links

Table of n, a(n) for n=2..4.

Mathematica

Table[ ((Prime[n] - 1)^(Prime[n]^2) + 1)/Prime[n]^3, {n, 2, 10} ]

Crossrefs

Subset of A137643.

Sequence in context: A347353 A128400 A211378 * A137643 A351570 A023921

Adjacent sequences: A133588 A133589 A133590 * A133592 A133593 A133594

Keyword

nonn,bref

Author

Alexander Adamchuk, Dec 27 2007

Status

approved