|
Search: id:A147942
|
|
|
| A147942 |
|
Number of permutations of floor(i*9/7), i=0..n-1, with all sums of 2 through 4 adjacent terms respectively unique. |
|
+0
1
|
|
| 1, 2, 6, 16, 74, 304, 1424, 7946, 39908, 231442, 1351720, 9447558, 67300148, 488187450, 4266438488, 36066619444
(list; graph; listen)
|
|
|
|
|
Search completed in 0.002 seconds
|
