Expansion of g.f. A(x) satisfying A(x)^2 = A( x^2/(1-2*x)^4 )/(1-2*x).
A375444
Expansion of g.f. A(x) satisfying A(x)^2 = A( x^2/(1-2*x)^4 )/(1-2*x).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =7a(4) =30a(5) =130a(6) =561a(7) =2460a(8) =11115a(9) =51948a(10) =250551a(11) =1240828a(12) =6274580a(13) =32231322a(14) =167460901a(15) =876998437a(16) =4617448333a(17) =24395086617a(18) =129162020323a(19) =684753458054
External references
- oeis: A375444