Truncated Octahedral Number
A Figurate Number which is constructed as an Octahedral Number with a Square Pyramid removed from eachof the six Vertices,
where
is an Octahedral Number and 
is a Pyramidal Number. The first few are 1, 38, 201, 586,... (Sloane's A005910). The Generating Function for the truncated octahedral numbers is
See also Octahedral Number
References
Conway, J. H. and Guy, R. K. The Book of Numbers. New York: Springer-Verlag, p. 52, 1996. Sloane, N. J. A. SequenceA005910/M5266in ``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.
- P-Circle
- Peacock's Tail
- Peano Arithmetic
- Peano Curve
- Peano-Gosper Curve
- Peano's Axioms
- Peano Surface
- Pear Curve
- Pearls of Sluze
- Pear-Shaped Curve
- Pearson-Cunningham Function
- Pearson Kurtosis
- Pearson Mode Skewness
- Pearson's Correlation
- Pearson's Function
- Pearson Skewness
- Pearson's Skewness Coefficients
- Pearson System
- Pearson Type III Distribution
- Peaucellier Cell
- Peaucellier Inversor
- Peaucellier's Linkage
- Pedal
- Pedal Circle
- Pedal Coordinates