A001844

GPTKB entity

Statements (47)
Predicate Object
gptkbp:instanceOf integer sequence
gptkbp:appearsIn gptkb:Pascal's_triangle
gptkbp:author gptkb:N._J._A._Sloane
gptkbp:citation gptkb:A001047
gptkb:A007318
A000984
A002457
A001700
gptkbp:describes Central binomial coefficients: binomial(2n, n), n >= 0.
gptkbp:field combinatorics
gptkbp:first_terms 2
1
20
252
6
70
924
3432
12870
48620
184756
10400600
2704156
705432
gptkbp:form a(n) = binomial(2n, n)
gptkbp:hasKeyword easy
nice
core
full
nonn
fini
https://www.w3.org/2000/01/rdf-schema#label A001844
gptkbp:OEIS gptkb:A001844
https://oeis.org/A001844
gptkbp:offset 0
gptkbp:recurrence a(n) = 2*(2n-1)*a(n-1)/n, a(0)=1
gptkbp:relatedTo gptkb:Catalan_numbers
gptkbp:sequence gptkb:Central_binomial_coefficients
gptkbp:usedIn gptkb:binomial_theorem
gptkb:probability_theory
analysis
number theory
algebraic combinatorics
combinatorial identities
enumeration of lattice paths
gptkbp:bfsParent gptkb:OEIS_A001844
gptkbp:bfsLayer 8