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A002916 High temperature series for spin-1/2 Ising specific heat on 3-dimensional simple cubic lattice.
(Formerly M3133 N1271)
5
3, 33, 564, 8976, 155124, 2791308, 51382068, 962178084, 18258531348, 350143322088, 6772382631732, 131922552534036, 2585198190891636, 50919899448451512, 1007393565758096820, 20007153991627682124, 398699967207692643924, 7969220499183448073760, 159718349893920279061428 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
REFERENCES
S. R. Finch, Mathematical Constants, Cambridge, 2003, pp. 391-406.
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).
LINKS
Steven R. Finch, Lenz-Ising Constants [broken link]
Steven R. Finch, Lenz-Ising Constants [From the Wayback Machine]
A. J. Guttmann and I. G. Enting, The high-temperature specific heat exponent of the 3-dimensional Ising model, J. Phys. A 27 (1994) 8007-8010.
FORMULA
Sum_{n>=0} a(n) * v^(2*n) = (v^2-1) * (-q/2*f(v)^2 - (v^2-1) * f'(v)^2 + f(v) * (2*v*f'(v) + (v^2-1)*f''(v))) / f(v)^2, where f(v) = Sum_{n>=0} A001393(n) * v^(2*n) and q = 6 is the number of nearest neighbors. - Andrey Zabolotskiy, Feb 15 2022
MATHEMATICA
3 Cases[Import["https://oeis.org/A001408/b001408.txt", "Table"], {_, _}][[All, 2]] (* Jean-François Alcover, Jan 17 2020 *)
CROSSREFS
Equals 3*A001408.
Cf. A002917 (b.c.c.), A002918 (f.c.c.), A001393 (partition function), A010571 (internal energy), A002913 (susceptibility), A002169 (Heisenberg model), A029872 (square, low-temperature).
Sequence in context: A209245 A092170 A083080 * A009659 A367427 A361212
KEYWORD
nonn
AUTHOR
EXTENSIONS
Corrections and updates from Steven Finch
Terms a(13) and beyond from Andrey Zabolotskiy, Feb 15 2022
STATUS
approved

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Last modified April 19 04:35 EDT 2024. Contains 371782 sequences. (Running on oeis4.)