82561

Properties

Appears in sequences

• Class 7+ primes.at n=17A081635
• Balanced primes of order ten.at n=30A096702
• a(n) = Sum_{k=0..floor(n/7)} C(n-5*k,2*k).at n=36A098574
• Smallest m such that the period of the continued fraction of sqrt(m) is A215485(n); records of A013646.at n=32A215508
• a(n) = Sum_{k=0..floor(2*n/7)} binomial(2*n-5*k,2*k).at n=18A392398
• Prime numbersat n=8071