-2042

Appears in sequences

• Imaginary Rabbits: imaginary part of a(0)=i; a(1)=-i; a(n) = a(n-1) + i*a(n-2), with i = sqrt(-1).at n=28A014291
• Expansion of Product_{k>=1} (1 - x^k)^(k+1).at n=36A299019