614655

Appears in sequences

• Positive numbers which are one less than a perfect square that is also another power.at n=35A062965
• G.f.: A(x) = Product_{n>=1} 1/(1 - 5^n*x^n)^(5/5^n).at n=8A110155
• a(n) = n^4 - 1.at n=27A123865
• n^4 - 1 divided by its largest fourth power divisor.at n=26A128251
• Numbers n such that the number of divisors of n+1 divides n and the number of divisors of n divides n+1.at n=16A272353
• Odd numbers that are one less than the square of a perfect power.at n=18A389956