|
|
A005551
|
|
Number of n-step self-avoiding walks on hexagonal lattice from (0,0) to (0,4).
(Formerly M5090)
|
|
7
|
|
|
1, 20, 130, 576, 2218, 8170, 29830, 109192, 402258, 1492746, 5578742, 20986424, 79420122, 302175648, 1155298598, 4436375790, 17103294308, 66174208076, 256870951048, 1000080994758, 3904276709604, 15280413966512
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
4,2
|
|
COMMENTS
|
The hexagonal lattice is the familiar 2-dimensional lattice in which each point has 6 neighbors. This is sometimes called the triangular lattice.
|
|
REFERENCES
|
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,walk,more
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|