A196070 Primes of the form 3^k - 2^k + k + k^2 - k^3.

2, 3, 491, 525773

Offset

1,1

Comments

Generated by k = 1, 2, 6, 12, 2682,...

The fifth term (not shown) has 1280 digits. - R. J. Mathar, Sep 27 2011

Links

Table of n, a(n) for n=1..4.

Crossrefs

Cf. A195813.

Sequence in context: A306370 A355644 A128874 * A173342 A090510 A348360

Adjacent sequences: A196067 A196068 A196069 * A196071 A196072 A196073

Keyword

nonn

Author

Juri-Stepan Gerasimov, Sep 27 2011

Status

approved