254321

Appears in sequences

• Patterns in a dual ring.at n=20A007574
• Composite n such that n divides both Fibonacci(n-1) and Fibonacci(n) - 1.at n=23A094401
• Semiprimes k that divide Fibonacci(k-1).at n=27A177086
• Frobenius pseudoprimes with respect to Fibonacci polynomial x^2 - x - 1.at n=28A212424
• Frobenius pseudoprimes == 1,4 (mod 5) with respect to Fibonacci polynomial x^2 - x - 1.at n=20A319168
• Odd composite integers m such that F(m)^2 == 1 (mod m) and L(m) == 1 (mod m), where F(m) and L(m) are the m-th Fibonacci and Lucas numbers, respectively.at n=35A337625