68659

Properties

Appears in sequences

• 24 'Reverse and Add' steps are needed to reach a palindrome.at n=40A065318
• Primes of the form n^2 + 15.at n=36A243450
• Expansion of Product_{k>=1} (1 - x^k)^A000593(k).at n=40A316366
• G.f. satisfies A(x) = 1/(1 - 2*x) - x*A(x)^3.at n=20A364641
• Slowest increasing sequence of primes such that a(n - 1) + a(n) and a(n - 1)^2 + a(n)^2 are both semiprimes, with a(1)=2.at n=40A365050
• Prime numbersat n=6824