Schröder–Hipparchus number

#	Item
1	Juniors (Grades up to 10) International Mathematics TOURNAMENT OF THE TOWNS A-Level Paper Add to Reading List Source URL: www.math.toronto.edu Language: English - Date: 2004-02-14 06:39:16 Euclidean plane geometry Triangles Triangle geometry Polygon Triangle Square Schröder–Hipparchus number Geometry Euclidean geometry Quadrilaterals
2	Catalan Numbers Tom Davis [removed] Add to Reading List Source URL: www.geometer.org Language: English - Date: 2012-10-13 08:49:02 Discrete mathematics Enumerative combinatorics Catalan number Binary tree Regular polygon Tree Polygon Narayana number Schröder–Hipparchus number Mathematics Combinatorics Integer sequences
3	PDF Document Add to Reading List Source URL: www-math.mit.edu - Date: 2011-04-18 20:26:38 Combinatorics Catalan number Hipparchus Function Polygon Axial precession Schröder–Hipparchus number Mathematics Integer sequences Enumerative combinatorics
4	PDF Document Add to Reading List Source URL: mathcircle.berkeley.edu Language: English - Date: 2006-12-05 14:44:58 Discrete mathematics Enumerative combinatorics Catalan number Binary tree Regular polygon Tree Polygon Narayana number Schröder–Hipparchus number Mathematics Combinatorics Integer sequences