A063270 a(n) = 9^(2n) + 1.

2, 82, 6562, 531442, 43046722, 3486784402, 282429536482, 22876792454962, 1853020188851842, 150094635296999122, 12157665459056928802, 984770902183611232882, 79766443076872509863362, 6461081889226673298932242, 523347633027360537213511522

Offset

0,1

Links

Harry J. Smith, Table of n, a(n) for n = 0..100

Index entries for linear recurrences with constant coefficients, signature (82, -81).

Formula

a(n) = 82*a(n-1) - 81*a(n-2), a(0)=2, a(1)=82. - Harvey P. Dale, Jul 31 2013

Mathematica

9^(2*Range[0, 20])+1 (* or *) LinearRecurrence[{82, -81}, {2, 82}, 20] (* Harvey P. Dale, Jul 31 2013 *)

Prog

(PARI) a(n) = 9^(2*n) + 1;

Crossrefs

Cf. A063271.

Sequence in context: A197641 A093666 A246002 * A087617 A263365 A140157

Adjacent sequences: A063267 A063268 A063269 * A063271 A063272 A063273

Keyword

easy,nonn

Author

Jason Earls, Jul 12 2001

Extensions

More terms from Harvey P. Dale, Jul 31 2013

Status

approved