56809

Properties

Appears in sequences

• Number of n-node rooted trees of height 6.at n=15A000393
• Primes that remain prime through 4 iterations of function f(x) = 2x + 5.at n=28A023304
• Numbers k such that 65^k - 64^k is prime.at n=5A062631
• Triangle read by rows: T(n,k) = numerator of P(n, k) = 1 - n!/(n^k*(n-k)!).at n=33A089204
• Primes A080478(n)^2 + A080478(n+1)^2.at n=30A139361
• Primes p such that the maximal length of a nontrivial N(p)-Hensley sequence mod p is less than the value of A124882 for that prime, where N(p) is the least positive quadratic non-residue mod p.at n=28A261405
• Number of primes less than 10^n with digits in nondecreasing order.at n=14A345325
• Prime numbersat n=5760