|
|
A264140
|
|
Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 1,-2 or 1,1.
|
|
1
|
|
|
320, 18000, 1903336, 163887724, 15238898080, 1376159333484, 125699825697364, 11431703076430455, 1041358177270016565, 94799852855903563200, 8632210581410571081709, 785952052399566693917019
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
FORMULA
|
Empirical recurrence of order 95 (see link above)
|
|
EXAMPLE
|
Some solutions for n=2
..0..1..2..3..4.10..6....8..1..7..3..4..5..6....8..9..2..3..4.13..6
.15..8..9..5.19.17.18....2..0.14.15.11.20.13....7..0..1.18.16.12..5
.14..7.16.12.13.11.20....9.10.16.17.18.19.12...14.15.11.17.10.19.20
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|