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%I #12 Jun 13 2015 00:48:58
%S -40,-39,-38,-37,-36,-35,-34,-33,-32,-31,-30,-29,-28,-27,-26,-25,-24,
%T -23,-22,-21,-20,-19,-18,-17,-16,-15,-14,-13,-12,-11,-10,-9,-8,-7,-6,
%U -5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20
%N n-40.
%H Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html">Recursive Sequences</a>
%H <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1).
%F a(n) = 2 a(n-1) - a(n-2). a(n) = -A022996(n). G.f.: (-40 + 41*x)/(1 - x)^2. - _M. F. Hasler_, Apr 18 2015
%t Range[0,60]-37 (* _M. F. Hasler_, Apr 19 2015 *)
%o (PARI) a(n)=n-40 \\ _M. F. Hasler_, Apr 18 2015
%Y Cf. A256958, A001057, A000027, A001477, A000027, A023443, ..., A023481, A022958, ..., A022996, A256958.
%K sign,easy
%O 0,1
%A _N. J. A. Sloane_.
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