141295domain: NAppears in sequencesDenominators of continued fraction convergents to sqrt(618).at n=8A042187E.g.f. exp(x)*BesselI(2,2*sqrt(2)*x)/2.at n=11A098521Coefficient of x^(4^n) in Q(x)^(n+1) where Q(x) = Sum_{k>=0} (x^(4^k) + x^(2*4^k) + x^(3*4^k)).at n=6A145074