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Date: 19-12-2020
793
Date: 4-11-2020
547
Date: 24-8-2020
1429
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A figurate number of the form
(1) |
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(2) |
where is an octahedral number and is a tetrahedral number. The first few are 1, 14, 51, 124, 245, ... (OEIS A007588). The generating function for the stella octangula numbers is
(3) |
The only known square stella octangula numbers are 1 and 9653449, which correspond to with and .
REFERENCES:
Conway, J. H. and Guy, R. K. The Book of Numbers. New York: Springer-Verlag, p. 51, 1996.
Sloane, N. J. A. Sequence A007588/M4932 in "The On-Line Encyclopedia of Integer Sequences."
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مخاطر عدم علاج ارتفاع ضغط الدم
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اختراق جديد في علاج سرطان البروستات العدواني
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مدرسة دار العلم.. صرح علميّ متميز في كربلاء لنشر علوم أهل البيت (عليهم السلام)
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