Statements (20)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:Figurate_number
|
| gptkbp:describedBy |
Centered figurate number formula
|
| gptkbp:eighth_term |
127
|
| gptkbp:fifthBook |
37
|
| gptkbp:first_terms |
1
|
| gptkbp:form |
n^2 + (n-1)^2
|
| gptkbp:fourthPlace |
19
|
| gptkbp:is_a_sequence_of |
gptkb:Numbers
|
| gptkbp:ninth_term |
169
|
| gptkbp:OEIS_sequence |
A000569
|
| gptkbp:relatedTo |
gptkb:Polygonal_numbers
|
| gptkbp:seventhBook |
91
|
| gptkbp:sixthBook |
61
|
| gptkbp:tenth_term |
217
|
| gptkbp:thirdPlace |
7
|
| gptkbp:used_in |
gptkb:Number_theory
Combinatorics |
| gptkbp:bfsParent |
gptkb:OEIS:A000124
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
Central polygonal numbers
|