Expansion of 1/(1+7*x*c(x)), c(x) the g.f. of Catalan numbers A000108.

A127016

Expansion of 1/(1+7*x*c(x)), c(x) the g.f. of Catalan numbers A000108.

Terms

    a(0) =1a(1) =-7a(2) =42a(3) =-259a(4) =1582a(5) =-9702a(6) =59388a(7) =-363867a(8) =2228310a(9) =-13649650a(10) =83599852a(11) =-512063790a(12) =3136339276a(13) =-19210260076a(14) =117662192928a(15) =-720683271819

External references