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A198646 11*3^n-1. 2
10, 32, 98, 296, 890, 2672, 8018, 24056, 72170, 216512, 649538, 1948616, 5845850, 17537552, 52612658, 157837976, 473513930, 1420541792, 4261625378, 12784876136, 38354628410, 115063885232, 345191655698, 1035574967096, 3106724901290 (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 (4,-3).

FORMULA

a(n) = 3*a(n-1)+2, a(0)=10

G.f. ( 10-8*x ) / ( (3*x-1)*(x-1) ). - R. J. Mathar, Oct 30 2011

PROG

(MAGMA) [11*3^n-1: n in [0..30]]

CROSSREFS

Cf. A027107, A048473, A171498.

Sequence in context: A155192 A229720 A024933 * A052210 A084818 A264286

Adjacent sequences:  A198643 A198644 A198645 * A198647 A198648 A198649

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Oct 28 2011

STATUS

approved

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Last modified February 22 09:43 EST 2019. Contains 320390 sequences. (Running on oeis4.)