75337domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers k such that k and k^2 use only the digits 3, 5, 6, 7 and 9.at n=10A137133Number of possible values of C(v) = the number of valid mountain-valley assignments for a flat-foldable origami vertex v of degree 2n.at n=31A156209Prime numbersat n=7423