199828

Appears in sequences

• Partial sums of A337281.at n=17A337282
• Expansion of Sum_{k>0} (1/(1 - k*x^k)^2 - 1).at n=26A362683
• G.f. A(x) satisfies 1 + 4*A(x) = Sum_{n=-oo..+oo} (2*x + A(x)^n)^n.at n=10A378584