922561

Properties

Appears in sequences

• a(n) = n^4 - n^2 + 1.at n=31A060886
• Primes of the form sigma_4(k)/sigma_2(k), arising in A066109.at n=6A066110
• Primes of the form n^2*totient(n)+1 (or A053191(n) + 1).at n=32A076669
• a(n) = sigma_4(n^2)/sigma_2(n^2).at n=30A084218
• Smallest prime divisor of n^4-n^2+1.at n=29A125258
• Greatest prime factor of n^6+1.at n=30A240549
• Prime numbers with locations of right angle turns in the Ulam square spiral that are vertices of isosceles right triangles.at n=11A270269
• Prime numbersat n=72924