A199313 9*5^n+1.

10, 46, 226, 1126, 5626, 28126, 140626, 703126, 3515626, 17578126, 87890626, 439453126, 2197265626, 10986328126, 54931640626, 274658203126, 1373291015626, 6866455078126, 34332275390626, 171661376953126, 858306884765626

Offset

0,1

Links

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

Index entries for linear recurrences with constant coefficients, signature (6,-5).

Formula

a(n) = 5*a(n-1)-4.

a(n) = 6*a(n-1)-5*a(n-2).

G.f.: 2*(5-7*x)/((1-x)*(1-5*x)).

Prog

(Magma) [9*5^n+1: n in [0..30]];

Crossrefs

Sequence in context: A287090 A183133 A115712 * A003765 A138041 A351901

Adjacent sequences: A199310 A199311 A199312 * A199314 A199315 A199316

Keyword

nonn,easy

Author

Vincenzo Librandi, Nov 05 2011

Status

approved