79840

Appears in sequences

• Powers of fifth root of 23 rounded to nearest integer.at n=18A018181
• Powers of fifth root of 23 rounded up.at n=18A018182
• Pisot sequence T(4,6), a(n) = floor(a(n-1)^2/a(n-2)).at n=37A020747
• Pisot sequence T(6,9), a(n) = floor(a(n-1)^2/a(n-2)).at n=36A020751
• Consider the family of multigraphs enriched by the species of directed graphs. Sequence gives number of those multigraphs with n labeled edges.at n=4A099704
• The numbers k for which gcd(k, phi(k)) + gcd(k, tau(k)) = gcd(k, sigma(k)).at n=11A326416