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 A025981 Expansion of 1/((1-2x)(1-4x)(1-9x)(1-11x)). 0

%I

%S 1,26,449,6526,86565,1087242,13183033,156056342,1816137389,

%T 20873693698,237678368577,2687080081998,30211476701173,

%U 338208740115194,3773239145742281,41982119790892294,466091728979229117

%N Expansion of 1/((1-2x)(1-4x)(1-9x)(1-11x)).

%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (26, -227, 754, -792).

%F a(0)=1, a(1)=26, a(2)=449, a(3)=6526, a(n)=26*a(n-1)-227*a(n-2)+ 754*a(n-3)- 792*a(n-4) -- From _Harvey P. Dale_, Aug 11 2012

%F a(n) = -4*2^n/63 +32*4^n/35 -729*9^n/70 +1331*11^n/126. _R. J. Mathar_, Jun 20 2013

%t CoefficientList[Series[1/((1-2x)(1-4x)(1-9x)(1-11x)),{x,0,20}],x] (* or *) LinearRecurrence[{26,-227,754,-792},{1,26,449,6526},20] (* _Harvey P. Dale_, Aug 11 2012 *)

%K nonn

%O 0,2

%A _N. J. A. Sloane_.

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Last modified August 17 19:38 EDT 2022. Contains 356189 sequences. (Running on oeis4.)