Decagonal Number

A Figurate Number of the form . The first few are 1, 10, 27, 52, 85, ... (Sloane's A001107). The Generating Function giving the decagonal numbers is

References

Sloane, N. J. A. SequenceA001107/M4690in ``An On-Line Version of the Encyclopedia of Integer Sequences.''http://www.research.att.com/~njas/sequences/eisonline.html and Sloane, N. J. A. and Plouffe, S.The Encyclopedia of Integer Sequences. San Diego: Academic Press, 1995.

• Hurwitz Equation
• Hurwitz Number
• Hurwitz Polynomial
• Hurwitz-Radon Theorem
• Hurwitz's Irrational Number Theorem
• Hurwitz's Root Theorem
• Hurwitz Zeta Function
• Hutton's Formula
• Hutton's Method
• Hyperbola
• Hyperbola Evolute
• Hyperbola Inverse Curve
• Hyperbola Pedal Curve
• Hyperbolic Automorphism
• Hyperbolic Cosecant
• Hyperbolic Cosine
• Hyperbolic Cotangent
• Hyperbolic Cube
• Hyperbolic Cylinder
• Hyperbolic Dodecahedron
• Hyperbolic Fixed Point (Differential Equations)
• Hyperbolic Fixed Point (Map)
• Hyperbolic Functions
• Hyperbolic Geometry
• Hyperbolic Inverse Functions