|
| |
|
|
A147927
|
|
Number of permutations of floor(i*6/5), i=0..n-1, with all sums of two and three adjacent terms respectively unique.
|
|
0
|
|
|
|
1, 2, 6, 16, 54, 260, 1236, 6360, 34730, 192782, 1393166, 9882056, 75731318, 596396100, 4939024062, 49565770888
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
LINKS
|
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
