-1878

Appears in sequences

• Expansion of (1-x)^(-1)/(1-2*x+x^2+x^3).at n=18A077856
• Inverse binomial transform of A020806.at n=10A144471
• G.f. A(x) satisfies A(x) = Product_{k>=1} (1 - x^k*A(x)).at n=19A298261