55240

Appears in sequences

• Elements of A011185 that are also the sum of a pair of distinct elements of A011185.at n=24A133605
• Trajectory of 270 under repeated application of k -> (phi(k)+sigma(k))/2.at n=19A291789
• Take apart the sides of each of the integer-sided scalene triangles with perimeter n (at their vertices) and rearrange them orthogonally in 3-space so that their endpoints coincide at a single point. a(n) is the total surface area of all rectangular prisms enclosed in this way.at n=46A308235