Truncated Tetrahedral Number
المؤلف:
Conway, J. H. and Guy, R. K.
المصدر:
The Book of Numbers. New York: Springer-Verlag,
الجزء والصفحة:
...
25-12-2020
1242
Truncated Tetrahedral Number
A figurate number constructed by taking the 
th tetrahedral number and removing the 
th tetrahedral number from each of the four corners,
The first few are 1, 16, 68, 180, 375, ... (OEIS A005906). The generating function for the truncated tetrahedral numbers is
 |
(3)
|
REFERENCES:
Conway, J. H. and Guy, R. K. The Book of Numbers. New York: Springer-Verlag, pp. 46-47, 1996.
Sloane, N. J. A. Sequence A005906/M5002 in "The On-Line Encyclopedia of Integer Sequences."
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