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A139745 a(n) = 11^n - 7^n. 3
0, 4, 72, 988, 12240, 144244, 1653912, 18663628, 208594080, 2317594084, 25654949352, 283334343868, 3124587089520, 34425823133524, 379071610510392, 4172500607905708, 45916496933002560, 505214397985306564, 5558288899894321032, 61147691553229173148 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..300

Index entries for linear recurrences with constant coefficients, signature (18,-77).

FORMULA

a(n) = 18*a(n-1) - 77*a(n-2). - Vincenzo Librandi, Jun 02 2011

MATHEMATICA

Table[11^n-7^n, {n, 0, 30}] (* or *) LinearRecurrence[{18, -77}, {0, 4}, 30] (* Harvey P. Dale, Jun 17 2014 *)

PROG

(Magma) [11^n-7^n: n in [0..30]]; // Vincenzo Librandi, Jun 02 2011

CROSSREFS

Sequence in context: A192830 A119580 A209539 * A066992 A165212 A263219

Adjacent sequences:  A139742 A139743 A139744 * A139746 A139747 A139748

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, May 20 2008

STATUS

approved

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Last modified September 24 11:27 EDT 2022. Contains 356932 sequences. (Running on oeis4.)