233024

Appears in sequences

• a(0) = 1, a(1) = 4; for n >= 2 a(n) is the number of degree-n monic reducible polynomials over GF(4), i.e., a(n) = 4^n - A027377(n).at n=9A058819
• Number of subsets of {1,2,3,...,n} that sum to 0 mod 18.at n=22A068039