|
Search: id:A006729
|
|
|
| A006729 |
|
Series for second parallel moment of square lattice (eventually changes sign).
(Formerly M2088)
|
|
+0
2
|
|
| 2, 16, 72, 252, 764, 2094, 5362, 12968, 30138, 67446, 147048, 311940, 649860, 1325234, 2668130, 5278066, 10346200, 19977010, 38329556, 72546986, 136785444, 254596418, 473093498, 868060738, 1593517724
(list; graph; listen)
|
|
|
OFFSET
|
0,1
|
|
|
REFERENCES
|
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
J. W. Essam, A. J. Guttmann and K. De'Bell, On two-dimensional directed percolation, J. Phys. A 21 (1988), 3815-3832.
Jensen, Iwan; Guttmann, Anthony J.; Series expansions of the percolation probability for directed square and honeycomb lattices. J. Phys. A 28 (1995), no. 17, 4813-4833.
|
|
LINKS
|
I. Jensen, Table of n, a(n) for n = 0..170 (from link below)
I. G. Enting, A, J. Guttmann and I. Jensen, Low-Temperature Series Expansions for the Spin-1 Ising Model, J. Phys. A. 27 (1994) 6987-7006.
I. Jensen, More terms
|
|
CROSSREFS
|
Cf. A006461, A006727, A006728, A006730.
Sequence in context: A034579 A006733 A034580 this_sequence A007758 A034581 A028336
Adjacent sequences: A006726 A006727 A006728 this_sequence A006730 A006731 A006732
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com), Simon Plouffe (simon.plouffe(AT)gmail.com)
|
|
EXTENSIONS
|
The first negative term is the 70th.
|
|
|
Search completed in 0.002 seconds
|
