177662

Appears in sequences

• Maximum of A073830(k) for k between A001359(n) and A001359(n+1).at n=21A073831
• Expansion of x^2*(1+x^2) / ( (x^2-x+1)*(-x^2-x+1)*(1+x+x^2) ).at n=28A227047
• Indices of hexagonal numbers (A000384) that are also centered pentagonal numbers (A005891).at n=9A254962