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A246168 2^n - 10. 1
-9, -8, -6, -2, 6, 22, 54, 118, 246, 502, 1014, 2038, 4086, 8182, 16374, 32758, 65526, 131062, 262134, 524278, 1048566, 2097142, 4194294, 8388598, 16777206, 33554422, 67108854, 134217718, 268435446, 536870902, 1073741814, 2147483638 (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 (3,-2).

FORMULA

G.f.: (-9+19*x)/(1-3*x+2*x^2).

a(n) = 3*a(n-1) - 2*a(n-2).

a(n) = A000079(n) - 10.

MATHEMATICA

Table[2^n - 10, {n, 0, 35}] (* or *) CoefficientList[Series[(-9 + 19 x)/(1 - 3 x + 2 x^2), {x, 0, 35}], x]

PROG

(MAGMA) [2^n-10: n in [0..40]];

(PARI) vector(50, n, 2^(n-1)-10) \\ Derek Orr, Aug 18 2014

CROSSREFS

Sequences of the form 2^n-k: A000079 (k=0),  A000225 (k=1), A000918 (k=2), A036563 (k=3), A028399 (k=4), A168616 (k=5), A131130 (k=6), A048490 (k=7), A159741 (k=8), A185346 (k=9), this sequence (k=10).

Sequence in context: A193626 A316600 A087044 * A248585 A105415 A197015

Adjacent sequences:  A246165 A246166 A246167 * A246169 A246170 A246171

KEYWORD

sign,easy

AUTHOR

Vincenzo Librandi, Aug 18 2014

STATUS

approved

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Last modified May 24 16:47 EDT 2019. Contains 323533 sequences. (Running on oeis4.)