Statements (25)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
integer sequence
|
| gptkbp:author |
gptkb:N._J._A._Sloane
|
| gptkbp:citation |
A000217
A000330 A000578 |
| gptkbp:describes |
Number of combinations of n+2 things taken 3 at a time
Number of balls in a tetrahedron with n+1 balls on a side |
| gptkbp:eighth_term |
84
|
| gptkbp:fifthBook |
20
|
| gptkbp:first_terms |
0
1 |
| gptkbp:fourthPlace |
10
|
| gptkbp:hasKeyword |
easy
nice nonn |
| https://www.w3.org/2000/01/rdf-schema#label |
A000292
|
| gptkbp:n-th_term_formula |
n*(n+1)*(n+2)/6
|
| gptkbp:OEIS |
gptkb:A000292
|
| gptkbp:relatedTo |
binomial coefficients
|
| gptkbp:sequence |
Tetrahedral numbers
|
| gptkbp:seventhBook |
56
|
| gptkbp:sixthBook |
35
|
| gptkbp:thirdPlace |
4
|
| gptkbp:bfsParent |
gptkb:OEIS_A007318
|
| gptkbp:bfsLayer |
8
|