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 A063270 a(n) = 9^(2n) + 1. 2
 2, 82, 6562, 531442, 43046722, 3486784402, 282429536482, 22876792454962, 1853020188851842, 150094635296999122, 12157665459056928802, 984770902183611232882, 79766443076872509863362, 6461081889226673298932242, 523347633027360537213511522 (list; graph; refs; listen; history; text; internal format)
 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

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Last modified December 6 08:47 EST 2021. Contains 349563 sequences. (Running on oeis4.)