92394

Appears in sequences

• Number of 2 X 2 matrices having all terms in {1,...,n} and determinant = 0 (mod 3).at n=21A210698
• G.f. A(x) satisfies: A(x) = 1 + x + x^2 + x^3 + x^4 * A(x)^3.at n=21A346734