77097

Appears in sequences

• Numbers k for which phi(k) + anti-phi(k) = k.at n=33A066418
• Numbers k such that k^2+4, k^2+8, and k^2+10 are prime.at n=31A157929
• Number of first/rest balanced rooted plane trees with n nodes.at n=27A318049
• Numbers k of the form k = ab (the decimal concatenation of a and b) such that phi(ab) = a*b + 1.at n=5A336191