3616814565
domain: N
Appears in sequences
- a(n) = floor(2^(n-1)/n).at n=37A006788
- Nearest integer to 2^(n-1)/n.at n=37A054650
- Number of monic irreducible polynomials over GF(4) of degree n with fixed nonzero trace.at n=18A054660
- Number of monic irreducible polynomials over GF(4) with zero trace.at n=18A054661
- Number of 4-ary Lyndon words of length n with trace 0 mod 4.at n=18A054664
- Fermat quotients for base 4: (4^(p - 1) - 1)/p, where p = prime(n).at n=6A180511