cp's OEIS Frontend

A159994 Numerator of f(A159992(n)/A159993(n)) with f(x)=x^3+2*x^2+10*x-20, denominator=A159995.

%I A159994 #3 Mar 30 2012 18:51:04
%S A159994 -7,-1219,-193885217,-2512095067,-10152983807749,-249880575515347,
%T A159994 -2950249420928771944181,-5129149052857317896107,
%U A159994 -1247467412339070464235923,-16941291362994850503969493637
%N A159994 Numerator of f(A159992(n)/A159993(n)) with f(x)=x^3+2*x^2+10*x-20, denominator=A159995.
%C A159994 a(n)/A159995(n) = f(A159992(n)/A159993(n));
%C A159994 a(n)/A159995(n) < 0; a(n)/A159995(n) <= a(n+1)/A159995(n+1);
%C A159994 a(n)/A159995(n) --> 0.
%H A159994 R. Zumkeller, <a href="/A159994/b159994.txt">Table of n, a(n) for n = 0..30</a>
%e A159994 a(0)/A159995(0)=-7;
%e A159994 a(1)/A159995(1)=-1216/27000;
%e A159994 a(2)/A159995(2)=-193885217/46656000000;
%e A159994 a(3)/A159995(3)=-2512095067/46656000000000;
%e A159994 a(4)/A159995(4)=-10152983807749/80621568000000000000;
%e A159994 a(5)/A159995(5)=-249880575515347/14348907000000000000000;
%e A159994 a(6)/A159995(6)=-2950249420928771944181/12694994583552000000000000000000;
%e A159994 a(7)/A159995(7)=-5129149052857317896107/812479653347328000000000000000000;
%e A159994 a(8)/A159995(8)=-1247467412339070464235923/37907050706572935168000000000000000000;
%e A159994 written as decimal fractions:
%e A159994 a(1)/A159995(1) ~= -0.045037037037037037037037;
%e A159994 a(2)/A159995(2) ~= -0.004155633080418381344307;
%e A159994 a(3)/A159995(3) ~= -0.000053842915530692729766;
%e A159994 a(4)/A159995(4) ~= -0.000000125933842017920068;
%e A159994 a(5)/A159995(5) ~= -0.000000017414606946392990;
%e A159994 a(6)/A159995(6) ~= -0.000000000232394697099847;
%e A159994 a(7)/A159995(7) ~= -0.000000000006312956923568;
%e A159994 a(8)/A159995(8) ~= -0.000000000000032908585318.
%Y A159994 A159990.
%K A159994 frac,sign
%O A159994 0,1
%A A159994 _Reinhard Zumkeller_, May 01 2009