|
| |
|
|
A152331
|
|
Number of permutations of floor(i*9/8), i=0..n-1, with all sums of 3 adjacent terms unique.
|
|
0
|
|
|
|
1, 2, 6, 24, 96, 520, 2888, 19256, 141384, 1153758, 9954096, 95113642, 954777378, 10374152650, 118690353388, 1454505621506
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
LINKS
|
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
