|
| |
|
|
A001627
|
|
Related to Latin rectangles.
(Formerly M2165 N0862)
|
|
2
|
|
|
|
1, 0, 2, 44, 1008, 34432, 1629280, 101401344, 8030787968, 788377273856, 93933191303424, 13350759115563520, 2231133728986759168, 433075048506207645696, 96617322164029448916992, 24549315871469898190266368, 7047652261245574026565877760
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,3
|
|
|
REFERENCES
|
S. M. Kerawala, The enumeration of the Latin rectangle of depth three by means of a difference equation, Bull. Calcutta Math. Soc., 33 (1941), 119-127.
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
|
|
|
LINKS
|
Table of n, a(n) for n=1..17.
Index entries for sequences related to Latin squares and rectangles
|
|
|
FORMULA
|
a(1) = 1, a(n) = A000186(n) + A000186(n-1) + 3*(n-1)*A001626(n-1). - Sean A. Irvine, Sep 25 2015
|
|
|
CROSSREFS
|
Sequence in context: A285746 A203606 A009620 * A202747 A094397 A213067
Adjacent sequences: A001624 A001625 A001626 * A001628 A001629 A001630
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
N. J. A. Sloane
|
|
|
EXTENSIONS
|
More terms from Sean A. Irvine, Sep 25 2015
|
|
|
STATUS
|
approved
|
| |
|
|
