131087
domain: N
Appears in sequences
- a(n) = 2^(n+1) + n - 1.at n=16A083706
- Duplicate of A083706.at n=16A122039
- a(n) = smallest multiple of n which is >= 2^n.at n=16A128093
- First primitive GF(2)[X] polynomials of degree n with exactly 5 terms.at n=16A132451
- a(n) = Sum_{k=1..n} binomial(n,k) * gcd(k,n).at n=16A159068
- Numbers k such that A124440(k) is a square.at n=14A341032
- a(n) = Sum_{d|n} phi(n/d) * (2^d - 1).at n=16A346558
- Numbers k such that A163511(k) is a seventh power.at n=22A366287