69195domain: NAppears in sequencesSmallest integer that can be expressed as the sum of one or more consecutive semiprimes in exactly n ways.at n=9A186337Number of idempotent 5X5 0..n matrices of rank 1.at n=6A224527Expansion of (-1 + Product_{k>=1} 1 / (1 + (-x)^k))^7.at n=19A341246