-1254

Appears in sequences

• Expansion of (1 + x)/(1 + x + 2x^2).at n=21A110512
• a(n+1) = a(n-1) + 2 a(n-2) - a(n-4) ; a(0)=1, a(n)=0 for 0 < n < 5.at n=27A181560
• Coefficient table for the minimal polynomials of s(2*l+1)^2 = (2*sin(Pi/(2*l+1)))^2.at n=44A232632
• Coefficient table for minimal polynomials of s(n)^2 = (2*sin(Pi/n))^2.at n=72A232633
• Expansion of (1-q)^k/Product_{j=1..k} (1-q^j) for k=12.at n=13A275643
• Expansion of q^(-2/5) * r(q)^2 * (1 + r(q) * r(q^2)^2) in powers of q where r() is the Rogers-Ramanujan continued fraction.at n=54A285441
• G.f. A(x,y) = Sum_{-oo..+oo} (x - y^n)^(n+1), as a flattened rectangular array of coefficients T(n,k) of x^n * y^(k*(n+k-1)) in A(x,y) for n>=1.at n=85A293600
• Array of coefficients of the minimal polynomial of (2*cos(Pi/15))^n, for n >= 1 (ascending powers).at n=48A307886
• First term of n-th difference sequence of (floor(Pi*k/2)), k >= 0.at n=12A325741
• Expansion of g.f.: 1/Sum_{p prime} x^p.at n=17A352476
• G.f.: Sum_{n=-oo..+oo} x^(n*(n+1)/2) * C(x)^(2*n-1), where C(x) = 1 + x*C(x)^2 is the g.f. of the Catalan numbers (A000108).at n=43A355345
• G.f.: Sum_{n=-oo..+oo} x^(n^2) * C(x)^(2*n-1), where C(x) = 1 + x*C(x)^2 is a g.f. of the Catalan numbers (A000108).at n=88A356777
• Expansion of Sum_{k>0} x^(3*k)/(1+x^k)^4.at n=19A363617