129465

Appears in sequences

• Odd primitive abundant numbers n such that n = x^2 + x + y^2 with y^2 < 2*x; a subsequence of A006038.at n=12A136476
• Expansion of e.g.f. Product_{k>=0} 1/(1 - x^(2^k))^(1/2^k).at n=8A319105