46205

Appears in sequences

• Odd numbers k such that phi(k) = phi(k+2), where phi is the Euler totient function (A000010).at n=8A333741
• Numbers k such that lambda(k) = lambda(k+2), where lambda is the Carmichael lambda function (A002322).at n=37A333742
• a(n) = n! + (n-1)! + (n-2)! + (n-3)! + n - 3.at n=5A341300
• Numbers k such that A003415(k) == A276085(k) (mod 2310), where A003415 is the arithmetic derivative and A276085 is the primorial base log-function.at n=43A391864