119304704domain: NAppears in sequencesa(0) = 1, a(1) = 8; for n >= 2 a(n) is the number of degree-n monic reducible polynomials over GF(8), i.e., a(n) = 8^n - A027380(n).at n=9A058823Number of subsets of {1,2,3,...,n} that sum to 0 mod 18.at n=31A068039