204960

Appears in sequences

• Theta series of P_{12a} packing.at n=6A005952
• Expansion of e.g.f. exp( (x / (1-x))^2 ) / (1-x).at n=7A361594
• G.f. A(x) satisfies 2 = Sum_{n=-oo..+oo} x^(4*n) * (1 - x^n)^(4*n) * A(x)^n.at n=19A379196