79249domain: NAppears in sequencesSum of first n zeros of BesselJ function of zero order.at n=1A084692Numbers n such that phi(n) = 3*phi(n-1).at n=40A266268Number of blocks of size >= eight in all set partitions of n.at n=5A288790Number of inseparable type set partitions of {1..n}.at n=13A386634