|
Search: id:A007889
|
|
|
| A007889 |
|
Number of intransitive (or alternating) trees: vertices are [0,n] and for no i<j<k are both (i,j) and (j,k) edges. |
|
+0
6
|
|
| 1, 1, 2, 7, 36, 246, 2104, 21652, 260720, 3598120, 56010096, 971055240, 18558391936, 387665694976, 8787898861568, 214868401724416, 5636819806209792, 157935254554567296, 4707152127520549120, 148704074888134683520
(list; graph; listen)
|
|
|
Search completed in 0.002 seconds
|
