250857
domain: N
Appears in sequences
- Numbers n such that n divides 2^n + 1.at n=29A006521
- Numbers k such that k | 8^k + 1.at n=36A015955
- Pseudo-powers to base 3: numbers k that are not powers of 3 such that k divides 2^k + 1.at n=17A016057
- Primitive pseudo-powers to base 3.at n=5A016058
- Terms k of A006521 such that 2*k is a term of A124240.at n=28A289257