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A097167 3*10^n-2*9^n. 1

%I

%S 1,12,138,1542,16878,181902,1937118,20434062,213906558,2225159022,

%T 23026431198,237237880782,2435140927038,24916268343342,

%U 254246415090078,2588217735810702,26293959622296318,266645636600666862

%N 3*10^n-2*9^n.

%C Partial sums are A097168.

%H <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (19,-90).

%F G.f. : (1-7x)/((1-9x)(1-10x)); a(n)=19a(n-1)-90a(n-2).

%K easy,nonn

%O 0,2

%A _Paul Barry_, Jul 30 2004

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Last modified March 4 04:39 EST 2021. Contains 341779 sequences. (Running on oeis4.)