32257

Properties

Appears in sequences

• a(n) = 16*a(n-1) - a(n-2).at n=4A001081
• a(n) = 4th Chebyshev polynomial (first kind) evaluated at 2^n.at n=3A020538
• Numerators of continued fraction convergents to sqrt(7).at n=15A041008
• Numerators of continued fraction convergents to sqrt(28).at n=7A041044
• Numerators of continued fraction convergents to sqrt(63).at n=7A041110
• Numerators of continued fraction convergents to sqrt(112).at n=11A041202
• Numerators of continued fraction convergents to sqrt(252).at n=7A041472
• Numerators of continued fraction convergents to sqrt(448).at n=3A041852
• Primes p whose period of reciprocal equals (p-1)/9.at n=22A056214
• Primes with 15 as smallest positive primitive root.at n=8A061328
• Primes with every digit a prime and the sum of the digits a prime.at n=45A062088
• n is prime and is the concatenation of numbers n_1, n_2, n_3, in that order, with n_1 - n_2 = n_3. (Do not allow leading zeros for nonzero n_i.)at n=29A067861
• Primes for which the smallest positive primitive root is odd and nonprime.at n=15A070269
• Primes of the form 512*k+1.at n=12A076339
• Shallow diagonal of triangular spiral in A051682.at n=42A081275
• Third row of Pascal-(1,7,1) array A081582.at n=32A081593
• Primes of the form n followed by the least k == 1 (mod n).at n=31A090920
• Primes of the form 2*p^2 - 1, where p is prime.at n=12A092057
• Primes of the form 1024n + 513.at n=6A105132
• Primes with at least one of each prime digit.at n=19A108419