1050940domain: NAppears in sequencesDenominators of continued fraction convergents to e^(W(e-1)/(e-1)) where W(z) denotes the Lambert W function and e = 2.718281828...at n=10A143915Number of n-node unlabeled rooted trees with thinning limbs and root outdegree (branching factor) 6.at n=18A244707