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A199411 8*6^n+1. 1
9, 49, 289, 1729, 10369, 62209, 373249, 2239489, 13436929, 80621569, 483729409, 2902376449, 17414258689, 104485552129, 626913312769, 3761479876609, 22568879259649, 135413275557889, 812479653347329, 4874877920083969, 29249267520503809 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
FORMULA
a(n) = 6*a(n-1)-5.
a(n) = 7*a(n-1)-6*a(n-2).
G.f.: (9-14*x)/((1-x)*(1-6*x)).
MATHEMATICA
LinearRecurrence[{7, -6}, {9, 49}, 30] (* Harvey P. Dale, Aug 21 2016 *)
PROG
(Magma) [8*6^n+1: n in [0..30]];
CROSSREFS
Sequence in context: A231178 A359204 A090390 * A069665 A188235 A286810
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Nov 06 2011
STATUS
approved

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Last modified April 19 16:52 EDT 2024. Contains 371794 sequences. (Running on oeis4.)