A049181 - OEIS

%I #9 Jul 24 2023 04:33:20

%S 1,1,1,1,1,1,3,17,73,241,661,1585,3461,7285,16231,41921,124577,389233,

%T 1186617,3423201,9327801,24355849,62489483,162336209,437155705,

%U 1226390417,3534342301,10244919841,29383388701,82792942045

%N Revert transform of 2*x*(1 - x + x^2 - x^3 + x^4 - x^5)-x/(1+x).

%C Sign diagram of generating sequence: +++++++---------...

%H <a href="/index/Res#revert">Index entries for reversions of series</a>

%p Order := 80:

%p g := 2*x*(1-x+x^2-x^3+x^4-x^5)-x/(1+x) ;

%p solve(series(g, x)=y, x) :

%p convert(%, polynom) :

%p seq(coeff(%, y, i), i=0..Order-1) ; # _R. J. Mathar_, Jul 24 2023

%K nonn

%O 1,7

%A _Olivier Gérard_

%E NAME corrected. - _R. J. Mathar_, Jul 24 2023