2322967domain: NPropertiesPrimalityPrimeyesAppears in sequencesExpansion of (2/(3*sqrt(1-4*z)-1+4*z))*((1-sqrt(1-4*z))/(2*z))^k with k=5.at n=10A172062Number of 5 X n 0..1 arrays with rows unimodal and columns nondecreasing.at n=14A225012Prime numbersat n=171056