806404

Appears in sequences

• a(n) = (F(n+1) + L(n))^2 where F(n) are the Fibonacci numbers (A000045) and L(n) are the Lucas numbers (A000032).at n=13A014717
• Squares whose digits are all even.at n=23A030098
• Squares with initial digit '8'.at n=27A045792
• Even-digit perfect powers.at n=26A075787
• Numbers n such that every digit of n and sqrt(n) contains a loop (only digits 0,4,6,8,9 in n and sqrt(n)).at n=7A107627
• Perfect powers equal to the sum of 6 factorial numbers.at n=43A227647