8380417

Properties

Appears in sequences

• a(n) = 4th Chebyshev polynomial (first kind) evaluated at 2^n.at n=5A020538
• Primes of the form T_4(n), where T_4(x) = 8x^4 - 8x^2 + 1 is the fourth Chebyshev polynomial (of the first kind).at n=9A144131
• Primes of the form 2^k*(2^{phi(m)} - 1) + 1, where k and m are positive integers, and phi(.) is Euler's totient function.at n=38A234388
• a(n) = least prime of the form 2^m - 2^n + 1.at n=13A331205
• Prime numbersat n=563653