531521

Properties

Appears in sequences

• Sum_(x^i*y^j*z^k) with i + j + k = m and (x, y, z) = the primitive Pythagorean triple (8, 15, 17).at n=4A124100
• a(n) = smallest number that leads to a new cycle under the base-3 Kaprekar map of A164993.at n=23A165009
• Primes of the form n^3 + n - 1.at n=21A182332
• Primes of the form 3^k + 3^m - 1, where k and m are positive integers.at n=27A234346
• Primes of the form m = 3^i + 3^j - 1, where i > j >= 0.at n=23A239713
• Primes of the form m = 9^i + 9^j - 1, where i > j >= 0.at n=4A239719
• Prime numbersat n=43938