Octahedral number
In number theory, an octahedral number is a figurate number that represents the number of spheres in an octahedron formed from close-packed spheres. The nth octahedral number can be obtained by the formula: The first few octahedral numbers are: 1, 6, 19, 44, 85, 146, 231, 344, 489, 670, 891 (sequence in the OEIS).
10,0001000 (number)146 (number)20,0002000 (number)231 (number)30,0003000 (number)300 (number)40,0004000 (number)400 (number)44 (number)5000 (number)66000 (number)600 (number)7000 (number)8000 (number)800 (number)85 (number)9000 (number)Centered octahedral numberCentered square numberList of recreational number theory topicsOctahedronPollock's conjecturesSquare pyramidal number
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Octahedral number
In number theory, an octahedral number is a figurate number that represents the number of spheres in an octahedron formed from close-packed spheres. The nth octahedral number can be obtained by the formula: The first few octahedral numbers are: 1, 6, 19, 44, 85, 146, 231, 344, 489, 670, 891 (sequence in the OEIS).
has abstract
Eine Oktaederzahl ist eine Zah ...... n und Tetraederzahlen gehören.
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In number theory, an octahedra ...... 0, 891 (sequence in the OEIS).
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Inom talteorin är oktaedertal ...... 89, 670, , … (talföljd i OEIS)
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Osmistěnové číslo je , které p ...... 146, 231, 344, 489, 670, 891 .
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Un nombre octaédrique est un n ...... es est la fraction rationnelle
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Un numero ottaedrico è un nume ...... simo numero tetraedrico allora
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Октаэдральное число — разновид ...... ая функция последовательности:
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العدد ثماني السطوح (بالإنجليزي ...... 85 = (1²+2²+3²+4²)2+5² = (O(5
@ar
八面體數是能排成八面體的有形數, 或是由兩個四角錐疊起來, ...... 2005, 第23頁)參見。 八面體數可以使用三角形數表示
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Octahedral Number
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OctahedralNumber
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Eine Oktaederzahl ist eine Zah ...... lge erst mit der Eins beginnt.
@de
In number theory, an octahedra ...... 0, 891 (sequence in the OEIS).
@en
Inom talteorin är oktaedertal ...... 89, 670, , … (talföljd i OEIS)
@sv
Osmistěnové číslo je , které p ...... 146, 231, 344, 489, 670, 891 .
@cs
Un nombre octaédrique est un n ...... es est la fraction rationnelle
@fr
Un numero ottaedrico è un nume ...... (Dickson 2005, p. 23): vedi .
@it
Октаэдральное число — разновид ...... ая функция последовательности:
@ru
العدد ثماني السطوح (بالإنجليزي ...... 85 = (1²+2²+3²+4²)2+5² = (O(5
@ar
八面體數是能排成八面體的有形數, 或是由兩個四角錐疊起來, ...... 2005, 第23頁)參見。 八面體數可以使用三角形數表示
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Nombre octaédrique
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Numero ottaedrico
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Octahedral number
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Oktaedertal
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Oktaederzahl
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Osmistěnové číslo
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Октаэдральное число
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عدد ثماني السطوح
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八面體數
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