A120840 a(n) = 5^(n^2)-3^(n^2).

0, 2, 544, 1933442, 152544843904, 298022376588343682, 14551915078272216509641504, 17763568393763205317547489159863042, 542101086242748783319906107922486197863801344

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..30

Formula

a(n) = A060758(n)-A060722(n)=A095860(5,n)-A095860(3,n). - R. J. Mathar, Apr 24 2007

Mathematica

Table[5^(n^2) - 3^n^2, {n, 0, 10}] (* Vincenzo Librandi, Feb 27 2013 *)

Prog

(Magma) [5^(n^2) - 3^(n^2): n in [0..10]]; // Vincenzo Librandi, Feb 27 2013
(PARI) a(n)=5^(n^2)-3^(n^2) \\ Charles R Greathouse IV, Feb 27 2013

Crossrefs

Cf. A007689, A001047.

Sequence in context: A177836 A101702 A119780 * A348174 A348003 A058429

Adjacent sequences: A120837 A120838 A120839 * A120841 A120842 A120843

Keyword

nonn,easy

Author

Mohammad K. Azarian, Aug 18 2006

Extensions

Corrected by Ray Chandler, Sep 06 2006

Status

approved