559682

Appears in sequences

• Sum of two powers of 23.at n=14A073215
• a(n) = 2*prime(n)^4.at n=8A172191
• Numbers the sum of whose even divisors is 2 times a prime.at n=25A195334
• Numbers such that the difference between the sum of the even divisors and the sum of the odd divisors is prime.at n=27A195382
• a(n) = 2*n^4.at n=23A244730
• Numbers n such that n^3 = a^2 + b^2 and a^3 + b^3 is a square, for some positive integers a and b.at n=35A257965
• Even numbers such that the sum of the odd divisors is a prime p and the sum of the even divisors is 2p.at n=18A273459
• a(n) = Sum_{d|n} max(d, n/d)^4.at n=22A297843
• Terms of A330606 which are not squares or powers of 2.at n=8A330650
• Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = sqrt( Product_{a=1..n} Product_{b=1..k-1} (4*sin((2*a-1)*Pi/(2*n))^2 + 4*sin(2*b*Pi/k)^2) ).at n=39A341738
• a(n) is the smallest integer k > n such that sqrt(1/n + 1/k) is a rational number; or 0 if no such k exists.at n=45A379815
• a(n) = n^4*tau(n).at n=22A386013