498111952

Appears in sequences

• Number of ternary irreducible monic polynomials of degree n; dimensions of free Lie algebras.at n=21A027376
• Product_{k>=1} 1/(1 - x^k)^a(k) = 1 + 3x.at n=20A038064
• Product_{k>=1}(1 + x^k)^a(k) = 1 + 3x.at n=20A038068
• Dimensions of primitive Lie algebras connected with the Mantaci-Reutenauer algebra MR^(2).at n=20A185171
• Number of prime 3-ary toroidal arrays with 3 rows and n columns.at n=6A291077
• Inverse Weigh transform of 3^n.at n=20A306157