A199483 6*7^n+1.

7, 43, 295, 2059, 14407, 100843, 705895, 4941259, 34588807, 242121643, 1694851495, 11863960459, 83047723207, 581334062443, 4069338437095, 28485369059659, 199397583417607, 1395783083923243, 9770481587462695, 68393371112238859

Offset

0,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Index entries for linear recurrences with constant coefficients, signature (8,-7).

Formula

a(n) = 7*a(n-1)-6.

a(n) = 8*a(n-1)-7*a(n-2).

G.f.: (7-13*x)/((1-x)*(1-7*x)).

Mathematica

LinearRecurrence[{8, -7}, {7, 43}, 30] (* or *) NestList[7#-6&, 7, 30] (* Harvey P. Dale, Apr 13 2015 *)

Prog

(Magma) [6*7^n+1: n in [0..30]];

Crossrefs

Sequence in context: A351757 A338675 A244938 * A331236 A042213 A193705

Adjacent sequences: A199480 A199481 A199482 * A199484 A199485 A199486

Keyword

nonn,easy

Author

Vincenzo Librandi, Nov 07 2011

Status

approved