28518

Appears in sequences

• Numbers k such that phi(k + 8) | sigma(k) + 8.at n=9A015873
• Series for first parallel moment of square lattice bond percolation near a wall.at n=14A056575
• Numbers k that divide phi(k)^2 + sigma(k)^2.at n=38A068484
• Numbers k such that reverse(gpf(k)) = gpf(k+1), where gpf(n) = A006530(n); a(1)=1.at n=35A071844
• a(n) = Fibonacci(prime(n)) - prime(Fibonacci(n)).at n=8A093062
• Weight distribution of [98,49,16] binary extended quadratic-residue (or QR) code.at n=8A145683
• Sum of prime divisors of n (with repetition) is one less than the sum of prime divisors (with repetition) of n+1.at n=28A228126
• Numbers n such that Bernoulli number B_{n} has denominator 1806.at n=38A272139
• Eventual period of a single cell in rule 169 cellular automaton in a cyclic universe of width n.at n=27A334505