

A005399


E.g.f.: hightemperature series in J/2kT for ferromagnetic susceptibility for the spin1/2 Heisenberg model on hexagonal lattice.
(Formerly M4256)


1




OFFSET

1,1


COMMENTS

Previous name was: Susceptibility series for hexagonal lattice.
The hexagonal lattice is the familiar 2dimensional 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

Table of n, a(n) for n=1..9.
G. A. Baker Jr., H. E. Gilbert, J. Eve, G. S. Rushbrooke, On the twodimensional, spin1/2 Heisenberg ferromagnetic models, Phys. Lett., 25A (1967), 207209.
G. Nebe and N. J. A. Sloane, Home page for hexagonal (or triangular) lattice A2


CROSSREFS

Cf. A002920, A047709, A005400, A005401, A005402.
Sequence in context: A264083 A083233 A002918 * A258790 A244038 A037184
Adjacent sequences: A005396 A005397 A005398 * A005400 A005401 A005402


KEYWORD

sign,more


AUTHOR

N. J. A. Sloane


EXTENSIONS

New name from Andrey Zabolotskiy, Mar 03 2021


STATUS

approved



