159811domain: NPropertiesPrimalityPrimeyesAppears in sequences6*a(n) is the gap between sexy prime triples in the n-th sexy prime triple triple whose initial term is 5.at n=16A090775Number of planar n X n X n binary triangular grids with no more than 1 one in any 5 X 5 X 5 subtriangle.at n=13A153535Prime numbersat n=14671