354391domain: NPropertiesPrimalityPrimeyesAppears in sequencesFifth term of weak prime septet: p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m) < p(m+2)-p(m+1).at n=17A054838Triangle read by rows: number of permutation trees of power n and height <= k + 1.at n=41A179455Prime numbersat n=30329