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A199553 5*8^n+1. 1
6, 41, 321, 2561, 20481, 163841, 1310721, 10485761, 83886081, 671088641, 5368709121, 42949672961, 343597383681, 2748779069441, 21990232555521, 175921860444161, 1407374883553281, 11258999068426241, 90071992547409921 (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 (9,-8).

FORMULA

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

a(n) = 9*a(n-1)-8*a(n-2).

G.f.: (6-13*x)/((1-x)*(1-8*x)).

PROG

(MAGMA) [5*8^n+1: n in [0..30]];

CROSSREFS

Sequence in context: A084397 A024078 A095177 * A225031 A307663 A083430

Adjacent sequences:  A199550 A199551 A199552 * A199554 A199555 A199556

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Nov 08 2011

STATUS

approved

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Last modified August 9 23:26 EDT 2020. Contains 336335 sequences. (Running on oeis4.)