569520

Appears in sequences

• Numbers k such that 4*k-1, 8*k-1, 16*k-1, 32*k-1 and 64*k-1 are all primes.at n=22A101994
• Number of squarefree words of length 6 in an (n+1)-ary alphabet.at n=8A214945
• The hyper-Wiener index of the linear phenylene with n hexagons.at n=13A224455