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A010730 a(n) = (17 -3*(-1)^n)/2. 2
7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10, 7, 10 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
COMMENTS
Period 2.
LINKS
FORMULA
G.f.: ( -7-10*x ) / ( (x-1)*(1+x) ). - R. J. Mathar, Nov 21 2011
a(n) = 7 + 2^(1 - (-1)^n) - 1. - Vincenzo Librandi, Feb 28 2020
MATHEMATICA
PadRight[{}, 120, {7, 10}] (* Harvey P. Dale, Jul 08 2019 *)
PROG
(Magma) &cat [[7, 10]^^50]; // Vincenzo Librandi, Feb 28 2020
CROSSREFS
Sequence in context: A180732 A266551 A070405 * A225694 A247191 A317336
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified June 20 18:51 EDT 2024. Contains 373532 sequences. (Running on oeis4.)