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%I #26 Sep 10 2023 20:56:02
%S -2,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,
%T 24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,
%U 47,48,49,50,51,52,53,54,55
%N a(n) = n-2.
%C The months September to December (9 to 12) are sometimes found in old written French to be abbreviated as 7bre, 8bre, 9bre and 10bre. See Jeff Steiner link. - _Michel Marcus_, Sep 26 2017
%H Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html">Recursive Sequences</a>
%H Jeff Steiner's Americans in France, <a href="http://www.americansinfrance.net/Culture/Abbreviated-Months.cfm">Abbreviated Months (7bre, 8bre, 9bre, 10bre and Xbre)</a>
%H Robert G. Wilson v, <a href="/A001477/a001477.txt">American English names for the numbers from 0 to 100999 without spaces or hyphens</a>.
%H <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1).
%F G.f.: -(2-3*x)/(1-x)^2. - _Bruno Berselli_, Sep 02 2011
%F a(n) = 2*a(n-1) - a(n-2). a(n) = -A022958(n). - _M. F. Hasler_, Apr 18 2015
%t Range[-2, 100] (* _Wesley Ivan Hurt_, Sep 10 2023 *)
%o (PARI) a(n)=n-2
%Y Cf. A256958, A001057, A000027, A001477, A023443, A023445, ..., A023482, A022958, ..., A022996.
%K sign,easy
%O 0,1
%A _N. J. A. Sloane_.
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