Statements (24)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
integer sequence
|
| gptkbp:author |
gptkb:N._J._A._Sloane
|
| gptkbp:citation |
gptkb:A000055
gptkb:A000081 gptkb:A000169 gptkb:A001047 gptkb:A001190 A000238 |
| gptkbp:describes |
Counts the number of n-node rooted trees with no non-leaf vertices of outdegree 1.
|
| gptkbp:first_terms |
1, 1, 1, 2, 4, 9, 20, 48, 115, 286, 719, 1842, 4766, 12600, 33656, 90630, 246442, 674492, 1853884, 5127952, 14237744
|
| gptkbp:hasKeyword |
easy
nice nonn |
| gptkbp:hasOEISId |
gptkb:A006125
|
| https://www.w3.org/2000/01/rdf-schema#label |
OEIS A006125
|
| gptkbp:maintainedBy |
gptkb:OEIS_Foundation
|
| gptkbp:OEIS |
true
|
| gptkbp:relatedTo |
rooted trees
|
| gptkbp:sequence |
enumerative combinatorics
combinatorial Number of n-node rooted trees with no non-leaf vertices of outdegree 1 |
| gptkbp:status |
approved
|
| gptkbp:bfsParent |
gptkb:OEIS_A000372
|
| gptkbp:bfsLayer |
6
|