1217483domain: NPropertiesPrimalityPrimeyesAppears in sequencesExpansion of (1-3x+x^2)/((1-2x)(1-4x+x^2)).at n=11A087946a(n) = Sum_{k=0..floor(n/6)} (-1)^k*binomial(n,6*k).at n=23A307040Number of paths of length n starting at initial node of the path graph P_11.at n=23A336678Prime numbersat n=94176