2885681

Appears in sequences

• a(n) = (7^n + 3^n)/2.at n=8A081336
• Zsigmondy numbers for a = 7, b = 3: Zs(n, 7, 3) is the greatest divisor of 7^n - 3^n that is relatively prime to 7^m - 3^m for all positive integers m < n.at n=15A109348
• Numbers z such that x^2 + y^8 = z^2 (with positive integers x and y) and gcd(x, y, z) = 1.at n=12A293695