|
|
A234755
|
|
Number of (n+1)X(3+1) 0..3 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions or both
|
|
1
|
|
|
8968, 646036, 41065150, 2683721676, 174451064914, 11352560005654, 738613242438722, 48057390396250352, 3126794045459927262, 203441328354140321486, 13236675571733137508104, 861229107849713487636906
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
FORMULA
|
Empirical recurrence of order 55 (see link above)
|
|
EXAMPLE
|
Some solutions for n=1
..0..0..1..2....3..0..1..1....0..0..3..3....2..2..1..0....1..3..1..0
..2..1..0..3....2..1..1..0....2..1..2..3....2..1..2..2....2..2..1..2
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|