105168

Appears in sequences

• Numbers n such that phi(sigma(n)) = 5*phi(n).at n=17A067708
• Number of length-n 0..7 arrays connected end-around, with no sequence of L<n elements immediately followed by itself (periodic "squarefree").at n=5A215227
• Number of length-6 0..k arrays connected end-around, with no sequence of L<n elements immediately followed by itself (periodic "squarefree").at n=6A215229
• Number of 4-cycles in the n-triangular honeycomb queen graph.at n=15A289705