87697

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 65.at n=2A031653
• Primes of the form 16*m^2 + 81, m=1,2,3,...at n=14A087861
• Number of binary strings of length n with equal numbers of 00100 and 01001 substrings.at n=17A164236
• The smallest magic constant of an n X n magic square with distinct prime entries.at n=26A164843
• Primes of the form n^2 + 81.at n=28A256775
• a(n) = F(n+1)*F(n+2) - F(n), where F = A000045 (Fibonacci numbers).at n=11A269803
• Prime numbersat n=8517