21474836479
domain: N
Appears in sequences
- Primes of form 5*2^n-1.at n=7A050522
- Let t(x) be the highest power of 2 which divides x+1. Then a(1)=3; a(n) is the least prime p for which t(p) > t(a(n-1)).at n=17A084924
- Smallest prime with exactly n consecutive ones in the longest run of ones in its binary expansion.at n=31A090593
- Smallest prime of the form k^n + k^(n-1) - 1.at n=16A126017
- a(n) = 5*4^n - 1.at n=16A156760
- Primes p that give record exponents of 2 in p^2 - 1 (A091282).at n=21A233930
- Least prime containing at least n consecutive 1's in its binary representation.at n=32A307503
- a(n) = 5*2^n - (-1)^n.at n=32A321643
- Primes of the form q*2^h - 1, where q is a Fermat prime.at n=30A336116
- a(n) is the least prime p such that the binary expansions of p and of the next prime q > p differ at exactly n positions, and p and q have the same binary length.at n=30A374179