46748

Appears in sequences

• Number of polyiamonds with n cells that tile the plane isohedrally but not by translation or by 180-degree rotation (Conway criterion).at n=22A075222
• Expansion of (1 - x^2)/((1 - x^10)*(1 - x - x^2)).at n=24A349843
• Expansion of g.f. A(x) satisfying 2 = Sum_{n=-oo..+oo} (-1)^n * x^n * (A(x) + x^(2*n))^(2*n+1).at n=8A363140