488759domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = a(n-1) + a(n-4); first four terms are 0,1,2,3.at n=41A078467G.f.: Product_{k>=1} 1/(1-x^k)^(2*k+3).at n=12A255802Prime numbersat n=40672