4839120

Appears in sequences

• Amicable quadruples: the numbers b referred to in A036471.at n=2A036472
• a(n) = 17^n sin(2n arctan(1/4)) or numerator of tan(2n arctan(1/4)).at n=5A067360
• Expansion of 1/(1 - 8x + 17x^2).at n=11A106393
• Values of x such that x^2 + y^2 = 17^n with x and y coprime and 0 < x < y.at n=11A230622
• Expansion of e.g.f. -log(1 - x^3 * exp(x)).at n=10A366546
• E.g.f. satisfies A(x) = 1 + x^3*exp(x*A(x)).at n=10A371044