160169

Properties

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 61.at n=6A031649
• Primes that are decimal concatenations of n with n + 9.at n=24A032632
• Primes of the form 16*m^2 + 169, m=1,2,3,...at n=27A087862
• Number of tilings of a 5 X n rectangle using n pentominoes of shapes F, I, L, U.at n=12A251617
• Prime numbersat n=14700