8727391
domain: N
Appears in sequences
- Divisors of 2^35 - 1.at n=10A003542
- Cyclotomic polynomials at x=2.at n=35A019320
- a(n) = (2^n - 1)/product(2^p - 1) where the product is over all distinct primes p that divide n.at n=34A055515
- Zsigmondy numbers for a = 2, b = 1: Zs(n, 2, 1) is the greatest divisor of 2^n - 1 (A000225) that is coprime to 2^m - 1 for all positive integers m < n.at n=34A064078
- Quotient of A000225 and A064084.at n=34A064085
- Condensed version of A064085: all terms of A064085 with values greater than 1 (which coincides with all terms of A064085 with nonprime power index).at n=15A064086
- Smallest base-2 Fermat pseudoprime x that has ord(2,x) = n, or 0 if one does not exist.at n=34A086250
- Numbers of the form (2^(i*j)-1)/((2^i-1)*(2^j-1)) where gcd(i,j) = 1.at n=21A112674
- a(n) is the maximal overpseudoprime q to base 2 such that the multiplicative order of 2 mod q equals A143584(n).at n=5A131952
- Numbers of the form (2^(p*q)-1) /((2^p-1)*(2^q-1)), where p>q are primes.at n=11A140803
- a(n) is the smallest composite k such that k divides 2^(k*n-1) - 1.at n=35A317556