A320104 Let f(1) = 1 + i (where i denotes the imaginary unit) and for n > 0, f(n+1) is the Gaussian prime in the first quadrant (with positive real part and nonnegative imaginary part) with least modulus that divides 1 + Product_{k=1..n} f(k) (in case of a tie minimize the imaginary part); a(n) is the imaginary part of f(n).

1, 1, 3, 0, 20, 5, 4, 15910, 2, 2, 1, 2, 6, 81598, 5, 366, 588, 5, 202, 111603136724, 104, 13, 246202, 0, 61, 492, 439943534049216658488928456219783705840806353246605875

Offset: 1

Author

Rémy Sigrist, Oct 06 2018

Keywords

• nonn

Comments

See A319920 for the square of the modulus of f and additional comments.

Crossrefs

Cf. A319920.