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%I #15 Dec 27 2023 13:56:05
%S 1,0,-8,-77,-666,-5555,-44444,-333333,-2222222,-11111111,0,1111111111,
%T 22222222222,333333333333,4444444444444,55555555555555,
%U 666666666666666,7777777777777777,88888888888888888,999999999999999999,11111111111111111110,122222222222222222221
%N a(n) = (10^(n-1)-1) * (n-10) / 9.
%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (22,-141,220,-100).
%F G.f.: ( 1+133*x^2-121*x^3-22*x ) / ( (10*x-1)^2*(x-1)^2 ). - _R. J. Mathar_, Feb 14 2015
%t LinearRecurrence[{22,-141,220,-100},{1,0,-8,-77},30] (* _Harvey P. Dale_, Jun 24 2018 *)
%Y Cf. A091686.
%K easy,sign
%O 0,3
%A _Paul Barry_, Jan 29 2004
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