4093181688

Appears in sequences

• Number of ternary irreducible monic polynomials of degree n; dimensions of free Lie algebras.at n=23A027376
• Product_{k>=1} 1/(1 - x^k)^a(k) = 1 + 3x.at n=22A038064
• Product_{k>=1}(1 + x^k)^a(k) = 1 + 3x.at n=22A038068
• a(n) = floor(3^n / n).at n=22A092763
• Number of necklaces with n beads of 4 colors, no 2 adjacent beads the same color.at n=22A106366
• Dimensions of primitive Lie algebras connected with the Mantaci-Reutenauer algebra MR^(2).at n=22A185171
• Floor((3^n-1)/n).at n=22A225585
• Numbers of the form (3^k - 3)/k.at n=10A247033
• Inverse Weigh transform of 3^n.at n=22A306157