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%I #13 Nov 11 2017 15:17:20
%S 1,3,-5,13,-30,61,-119,234,-467,937,-1878,3757,-7511,15018,-30035,
%T 60073,-120150,240301,-480599,961194,-1922387,3844777,-7689558,
%U 15379117,-30758231,61516458,-123032915,246065833,-492131670,984263341,-1968526679,3937053354,-7874106707
%N Inverse binomial transform of A020806.
%H <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (-3,-3,-2)
%F |a(n+1)| - 2*|a(n)| = -A117378(n-1) = A117378(n+2), n>0.
%F a(n) = -3*a(n-1) - 3*a(n-2) - 2*a(n-3), n > 3.
%F G.f.: (6*x+7*x^2+9*x^3+1) / ((2*x+1) * (1+x+x^2)). - _R. J. Mathar_, Sep 07 2009
%p Digits := 200 ; read("transforms") ; read("transforms3") ; x := 1/7 ; L := CONSTTOLIST(x) ; BINOMIALi(L) ; # _R. J. Mathar_, Sep 07 2009
%t LinearRecurrence[{-3,-3,-2},{1,3,-5,13},40] (* _Harvey P. Dale_, Nov 11 2017 *)
%Y Cf. A141425, A141532.
%K sign
%O 0,2
%A _Paul Curtz_, Oct 10 2008
%E Edited and extended by _R. J. Mathar_, Sep 07 2009