515089domain: NPropertiesPrimalityPrimeyesAppears in sequencesMaxima of the numerators (and also of the denominators) of row n in the Schinzel-Sierpinski tree of fractions A295511.at n=15A295509Expansion of e.g.f. exp(x * (1 + x^2)^3).at n=8A373720Prime numbersat n=42676