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A199486 (9*7^n+1)/2. 1
5, 32, 221, 1544, 10805, 75632, 529421, 3705944, 25941605, 181591232, 1271138621, 8897970344, 62285792405, 436000546832, 3052003827821, 21364026794744, 149548187563205, 1046837312942432, 7327861190597021, 51295028334179144 (list; graph; refs; listen; history; text; internal format)
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)-3.

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

G.f.: (5-8*x)/((1-x)*(1-7*x)).

PROG

(MAGMA) [(9*7^n+1)/2: n in [0..30]];

CROSSREFS

Sequence in context: A024064 A164594 A305312 * A277756 A208632 A065071

Adjacent sequences:  A199483 A199484 A199485 * A199487 A199488 A199489

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Nov 07 2011

STATUS

approved

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Last modified August 4 20:28 EDT 2021. Contains 346455 sequences. (Running on oeis4.)