1108537domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers n such that the hexagonal number X(n) is equal to the sum of the heptagonal number H(m) and H(m+1) for some m.at n=2A252077Row 5 of A328464: a(n) = A276156(32n - 16) / 210.at n=24A328468Prime numbersat n=86342