Bell number

integer sequence counting the possible partitions of a set

Wikidata entity: Q816063

P1571	codomain	...	Q28920044 (positive integer)	positive integer
P2534	defining formula	Math	$\begin{aligned} B_{n} & = \| part ({1, \dots, n}) \| \\ = T_{n} (1) \\ = \sum_{k = 0}^{n} {\binom{n}{k}} \\ = \sum_{k = 0}^{n - 1} (\binom{n}{k}) B_{k} \end{aligned}$	???
P1568	definition domain	...	Q28920052 (non-negative integer)	non-negative integer
P7235	in defining formula	Math	$B_{n}$	???
P7235	in defining formula	Math	$T_{n}$	???
P7235	in defining formula	Math	$\| - \|$	???
P7235	in defining formula	Math	$part$	???
P7235	in defining formula	Math	${\binom{-}{-}}$	???
P7235	in defining formula	Math	$(\binom{-}{-})$	???
P31	instance of	...	Q24034552 (mathematical concept)	mathematical concept
P6104	maintained by WikiProject	...	Q8487137 (WikiProject Mathematics)	WikiProject Mathematics
P138	named after	...	Q548140 (Eric Temple Bell)	Eric Temple Bell
P279	subclass of	...	Q2297602 (integer sequence)	integer sequence
P910	topic's main category	...	Q20715813 (???)	???

External Ids

P646	Freebase ID	/m/01ck8p
P2812	MathWorld ID	BellNumber
P6366	Microsoft Academic ID (discontinued)	174710074
P8885	Namuwiki ID	벨 수
P829	OEIS ID	A000110
P9621	Treccani's Enciclopedia della Matematica ID	numeri-di-bell

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