135014

Appears in sequences

• a(n) = n^2*(5*n-3)/2.at n=38A006597
• Number of line segments in regular n-gon with all diagonals drawn.at n=37A135565
• Where records occur in A217287.at n=32A217289
• Numbers n for which phi(n) = phi(n-1) - phi(n+1).at n=8A220160