50066

Appears in sequences

• L.g.f.: -log(1 - Sum_{n>=1} x^(n^2)) = Sum_{n>=1} a(n)*x^n/n.at n=30A219331
• a(n) = Sum_{k=0..floor(n/3)} binomial(2*n-k+2,n-3*k).at n=8A371854
• a(n) = number of primes between n^2 and n^4.at n=28A380332