755487

Appears in sequences

• Numbers n such that n and n + 1 are both of the form p*q^5 where p and q are distinct primes.at n=8A215198
• a(n) = Sum_{k=0..floor(n/2)} 3^k * 2^(n-2*k) * binomial(k,n-2*k)^2.at n=14A387481