22619520

Appears in sequences

• Product of the quadratic residues of prime(n).at n=7A177860
• Expansion of e.g.f.: A(x) = Sum_{n>=0} binomial(x^n, n).at n=12A191460
• Solutions y to the negative Pell equation y^2 = 72*x^2 - 1331712 with x,y >= 0.at n=18A281242
• a(n) = Pochhammer(n, 5) / 2.at n=32A293615
• Expansion of e.g.f. 1/(1-x-2*x^2-3*x^3).at n=8A366942
• a(n) is the product of the distinct nonzero quadratic residues of n.at n=18A372651