29729597084
domain: N
Appears in sequences
- Imaginary part of (1+2i)^n.at n=30A006496
- a(n) = 5^n*sin(2n*arctan(1/2)) or numerator of tan(2n*arctan(1/2)).at n=14A066770
- Largest leg in right triangle with relatively prime sides and hypotenuse 5^n.at n=14A067312
- Expansion of 1/(1 - 4*x + 5*x^2).at n=29A099456
- Values of y such that x^2 + y^2 = 5^n with x and y coprime and 0 < x < y.at n=29A230711