|
| |
|
|
A147930
|
|
Number of permutations of floor(i*8/3), i=0..n-1, with all sums of two and three adjacent terms respectively unique.
|
|
0
|
|
|
|
1, 2, 6, 24, 96, 376, 2214, 14504, 76592, 578748, 4897972, 35873520, 341266768, 3588847880, 32029981504, 372805397466
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
LINKS
|
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
