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A199207 7*4^n+1. 2
8, 29, 113, 449, 1793, 7169, 28673, 114689, 458753, 1835009, 7340033, 29360129, 117440513, 469762049, 1879048193, 7516192769, 30064771073, 120259084289, 481036337153, 1924145348609, 7696581394433, 30786325577729 (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 (5,-4).

FORMULA

a(n) = 4*a(n-1)-3.

a(n) = 5*a(n-1)-4*a(n-2).

G.f.: (8-11*x)/((1-x)*(1-4*x)).  - Bruno Berselli, Nov 04 2011

PROG

(MAGMA) [7*4^n+1: n in [0..30]];

CROSSREFS

Sequence in context: A294838 A116952 A261478 * A088131 A072264 A110527

Adjacent sequences:  A199204 A199205 A199206 * A199208 A199209 A199210

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Nov 04 2011

STATUS

approved

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Last modified October 16 12:00 EDT 2018. Contains 316263 sequences. (Running on oeis4.)