cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-4 of 4 results.

A002910 High-temperature series in v = tanh(J/kT) for susceptibility for the Ising model on honeycomb structure.

Original entry on oeis.org

1, 3, 6, 12, 24, 48, 90, 168, 318, 600, 1098, 2004, 3696, 6792, 12270, 22140, 40224, 72888, 130650, 234012, 421176, 756624, 1348998, 2403840, 4299018, 7677840, 13635630, 24206220, 43092888, 76635984, 135698970, 240199320, 426144654, 755420328, 1334488074
Offset: 0

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Author

Keywords

Comments

Previous name was: Susceptibility series for honeycomb.

References

  • C. Domb, Ising model, in Phase Transitions and Critical Phenomena, vol. 3, ed. C. Domb and M. S. Green, Academic Press, 1974; p. 380.
  • 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).

Crossrefs

Cf. A002978.

Extensions

New name and more terms from Chan et al added by Andrey Zabolotskiy, Mar 03 2021

A002912 Low-temperature series in z = exp(-2J/kT) for ferromagnetic susceptibility for the Ising model on honeycomb structure.

Original entry on oeis.org

0, 0, 1, 6, 27, 122, 516, 2148, 8792, 35622, 143079, 570830, 2264649, 8942436, 35169616, 137839308, 538594704, 2098892928, 8159937669, 31656305550, 122575164923, 473797120338, 1828512928200, 7046581314292, 27119735418924, 104247226432566, 400272672674603
Offset: 1

Views

Author

Keywords

Comments

Previous name was: Susceptibility coefficients for honeycomb.

References

  • C. Domb, Ising model, in Phase Transitions and Critical Phenomena, vol. 3, ed. C. Domb and M. S. Green, Academic Press, 1974; p. 421.
  • 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).

Crossrefs

Cf. A002978.

Extensions

New name and more terms from Chan et al added by Andrey Zabolotskiy, Mar 03 2021

A002979 Low-temperature series in exp(4J/kT) for antiferromagnetic susceptibility for the Ising model on square lattice.

Original entry on oeis.org

0, 4, 0, 16, 32, 156, 608, 2688, 12064, 55956, 266656
Offset: 1

Views

Author

Keywords

Comments

Previous name was: Susceptibility series for square lattice.

References

  • N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Crossrefs

Cf. A007215, A002915 (cubic), A002978 (honeycomb), A002927 (ferromagnetic).

Formula

a(n) = 4*A007215(n-2). - Andrey Zabolotskiy, Mar 03 2021

Extensions

New name from Andrey Zabolotskiy, Mar 03 2021

A007214 Low temperature antiferromagnetic susceptibility for honeycomb lattice.

Original entry on oeis.org

1, 0, 3, 2, 12, 24, 80, 222, 687, 2096, 6585, 20892, 67216, 218412, 716304, 2367696, 7881381, 26398728, 88918451, 301014786, 1023681792, 3495786472, 11983194420, 41220422022, 142247592803, 492339048156, 1708741395441, 5945617039980, 20737219258440, 72488490389592
Offset: 0

Views

Author

Keywords

References

  • C. Domb, Ising model, in Phase Transitions and Critical Phenomena, vol. 3, ed. C. Domb and M. S. Green, Academic Press, 1974; p. 421.
  • N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
  • L. J. De Jongh (Ed.), Magnetic Properties of Layered Transition Metal Compounds, Kluwer Academic, Dordrecht, 1989, page 175. [Gives incorrect a(14)-a(18): they actually belong to A002978, i.e. differ by a factor of 4.]

Crossrefs

Cf. A002978.

Extensions

More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Sep 07 2010
a(14)-a(18) corrected and more terms added by Andrey Zabolotskiy, Mar 03 2021
Showing 1-4 of 4 results.