|
|
A321064
|
|
Number of ordered pairs (p,q) of permutations of [n] with equal up-down signatures and p(1)=q(1)=8.
|
|
1
|
|
|
654424, 19209584, 769534688, 39729927744, 2548520444480, 197890932247680, 18237517555977472, 1964023269922621952, 244043425473888612352, 34621419911316556017664, 5557654485553447834816512, 1001744885342172367869042688, 201381195927539873971774119936
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
8,1
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|