301513

Appears in sequences

• Numbers n such that phi(n) = phi(3n+1).at n=1A091294
• Numbers k such that phi(6k) is either phi(6k-2) or phi(6k+2), where phi is Euler's totient function A000010.at n=38A279011
• Numbers k such that phi(6k) = phi(6k+2), where phi is Euler's totient function A000010.at n=19A279184