58015

Appears in sequences

• a(n) = 74*n^2 - 1.at n=27A158744
• Coordination sequence for (2,3,8) tiling of hyperbolic plane.at n=45A265058
• Three-column array giving list of primitive triples for integer-sided triangles with A < B < C < 2*Pi/3 and such that FA, FB, FC are also integers where F is the Fermat point of the triangle.at n=11A352360
• The number of regions in the G-Shi arrangement when G is the cycle graph C_n.at n=9A355645