19740249

Appears in sequences

• Nonnegative integer solutions X to the equation: X(X + 1) - 10*Y^2 = 0.at n=5A132593
• Numbers n, satisfying A055231(n+1) - A055231(n) = 1, and with n and n+1 not squarefree.at n=24A140394
• a(n) = n * (16*n^2+20*n+5)^2.at n=9A322745