OFFSET
0,2
EXAMPLE
G.f.: A(x) = 1 + 6*x + 96*x^2 + 2684*x^3 + 102684*x^4 + 4882174*x^5 + 274765780*x^6 + 17776825674*x^7 + 1296734890800*x^8 + 105176634515540*x^9 + ...
such that
1 = 1/2 + (1/(1-x) - 3*x*A(x))/2^2 + (1/(1-x)^2 - 3*x*A(x))^2/2^3 + (1/(1-x)^3 - 3*x*A(x))^3/2^4 + (1/(1-x)^4 - 3*x*A(x))^4/2^5 + (1/(1-x)^5 - 3*x*A(x))^5/2^6 + (1/(1-x)^6 - 3*x*A(x))^6/2^7 + ...
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, May 16 2018
STATUS
approved