|
| |
|
|
A059684
|
|
Triangle T(n,k) giving number of 4 X k polyominoes with n cells (n >= 4, 1<=k<=n-3).
|
|
0
| |
|
|
1, 0, 3, 0, 6, 15, 0, 2, 39, 30, 0, 1, 59, 148, 61, 0, 0, 42, 349, 383, 97, 0, 0, 21, 518, 1304, 822, 155
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 4,3
|
|
|
REFERENCES
| R. C. Read, Contributions to the cell growth problem, Canad. J. Math., 14 (1962), 1-20.
|
|
|
EXAMPLE
| 1; 0,3; 0,6,15; 0,2,39,30; ...
|
|
|
CROSSREFS
| Sequence in context: A057381 A144091 A019145 * A083350 A002043 A171002
Adjacent sequences: A059681 A059682 A059683 * A059685 A059686 A059687
|
|
|
KEYWORD
| nonn,easy,nice
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Feb 05 2001
|
| |
|
|
