Hyperfactorial
The function defined by
where
is the K-Function and the first few values for 
, 2, ... are 1, 4, 108, 27648, 86400000,4031078400000, 3319766398771200000, ... (Sloane's A002109), and these numbers are called hyperfactorials by Sloane andPlouffe (1995).See also G-Function, Glaisher-Kinkelin Constant, K-Function
References
Sloane, N. J. A. SequenceA002109/M3706in ``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.
- Eigenfunction
- Eigenvalue
- Eigenvector
- Eight Curve
- Eight-Point Circle Theorem
- Eight Surface
- Eikonal Equation
- Eilenberg-Mac Lane Space
- Eilenberg-Mac Lane-Steenrod-Milnor Axioms
- Eilenberg-Steenrod Axioms
- Ein Function
- Einstein Functions
- Einstein Summation
- Eisenstein Integer
- Eisenstein-Jacobi Integer
- Eisenstein Prime
- Eisenstein Series
- Eisenstein Unit
- Elastica
- Elation
- Elder's Theorem
- Election
- Electric Motor Curve
- Element
- Elementary Function