335104domain: NAppears in sequencesa(n) = ((6*n+10)(!^6))/10(!^6), related to A034724 (((6*n+4)(!^6))/4 sextic, or 6-factorials).at n=4A053103G.f. A(x) satisfies: A(x) = x + x*[d/dx A(x)^2].at n=6A218222