262313

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 78.at n=7A031666
• Primes of the form 16*m^2 + 169, m=1,2,3,...at n=34A087862
• Number of permutations of length n which avoid the patterns 123, 2431, 4132.at n=18A116713
• Primes of the form 4^k + 13^2.at n=4A178652
• Prime numbersat n=23013