A007288 Expansion of layer susceptibility series for square lattice.

1, 3, 7, 19, 49, 127, 321, 813, 2041, 5117, 12763, 31791, 78917, 195677, 483997, 1196081, 2950439, 7271905

Offset: 0

Author

Simon Plouffe

Keywords

• nonn
• more

References

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

Links

• I. G. Enting and A. J. Guttmann, The square lattice Ising model with a free surface, J. Phys. A: Math. Gen. 13 (1980), 1043-1050.
• S. G. Whittington, G. M. Torrie and A. J. Guttmann, The Ising model with a free surface: a series analysis study, J. Phys. A 12 (1979), 2449-2455.

Crossrefs

Cf. A007287 (cubic).

Extensions

a(14) corrected, a(15)-a(17) from Enting & Guttmann added by Andrey Zabolotskiy, Feb 16 2022