10418726760domain: NAppears in sequencesExpansion of 1/(1-4*x)^(11/2).at n=11A020922a(n) = (1+(-1)^n)/2*4^n*(C((3*n)/2-1,n))+(1-(-1)^n)/2*((C((3*n-1)/2,n))*(C(3*n-1,(3*n-1)/2)))/(C(n-1,(n-1)/2)).at n=11A348618