-2368

Appears in sequences

• Dirichlet convolution of Ramanujan numbers (A000594) with themselves.at n=3A034778
• Expansion of (1-x^2)/(1-x-x^2+x^3+x^4).at n=34A101496
• Expansion of (1-2*x+2*x^2-x^3)/(1-3*x+5*x^2-3*x^3+x^4).at n=17A123879
• Triangular sequence from coefficients of a switched even -odd polynomial recursion: Even:p(x,n)=2*x*p(x, n - 1) - p(x, n - 2); Odd:p(x,n)=(1 - 2*x)*p(x, n - 1) - p(x, n - 2);.at n=50A137406
• Expansion of Product_{k>=0} (1-x^(4*k+1))^(4*k+1).at n=31A285070